List of characters

Main characters
These characters have all had a major role in the story of the show. Most, if not all of them, have appeared in the majority of series.

Other major characters
These characters play a major role in the story, often times having more than one or two episodes that focus entirely on them, but are not always guaranteed to appear.

Supporting characters
These are recurring characters that have appeared in more than one episode, but rarely do they ever have any major effect on the plot, and typically serve as background/group shot fodder.

One time characters
These are characters that have only appeared in one episode, but were important characters in their lone appearance. Some of them have also appeared in other episodes in background shots.

'''This is a very long list. click on the show button to bring it up.'''

Minor characters
These are characters that have only appeared in a few episodes, usually as bit characters, and have little effect on the story.

'''This is a very long list. click on the show button to bring it up.'''

{|width="98.5%" class="collapsible collapsed" ! style="background:#766cb1; color:#f7e262;" colspan="2" | List of Minor Characters William Shakespeare A poet from real history, seen in Hail for the chief |[[Stephen Hawking A professor from real history, he made so that 2+2 could equel five. Spatula Woman]] Sparky Timmy's Fairy Dog Soon-to-be Appearance: Fairly OddPet
 * width="120" style="background:#766cb1; color:#f7e262;"|Name
 * style="background:#766cb1; color:#f7e262"|Description
 * Winston
 * Jorgen Von Strangle's wimpy godchild. He only appeared in one episode. First Appearance: The Zappys!
 * Stanley
 * First Appearance: The Zappys!
 * Sally
 * First Appearance: The Zappys!
 * Wizzy
 * A fairy reporter for a Fairy World news station called FTV. First Appearance: The Zappys!
 * Robot Vicky
 * A robot version of Vicky that appeared as the final boss in a video game Timmy wished for. First Appearance: Power Mad!
 * Aunt Gertrude
 * Timmy Turner's Aunt Gertrude, her only appearance is in lobster form as a boss in a video game. First Appearance: Power Mad!
 * Dr. Snipowitz
 * A veterinarian that employs a variety of painful looking tools to fix animals. He later became a doctor at an even scarier hospital. First Appearance: Dog's Day Afternoon
 * Ranch Girl
 * This girl from Montana showed up along with a bunch of other kids to help Timmy Turner save Santa Claus on Christmas. She also appeared in the video game "Nicktoons: Freeze Frame Frenzy". First Appearance: Christmas Every Day!
 * A.J.'s Mom
 * A.J.'s mother, who has appeared in only a few episodes. She is usually dressed like a businesswoman. First Appearance: Information Stupor Highway
 * The Unknown Teacher
 * An unnamed teacher at Timmy Turner's school that likes to tell jokes about Mr. Crocker around the water cooler. First Appearance: Transparents!
 * Sanjay's Mom
 * Sanjay's biological mother. Not much is known about her, as she has only spoken once in the entire series. First Appearance: Snow Bound
 * Chipper the Cat
 * Vicky's pet, a very disturbed looking cat. First Appearance: Dog's Day Afternoon
 * Happy the Goldfish
 * A pet fish that Vicky had fixed by Dr. Snipowitz, he floats unhappily in his fishbowl. First Appearance: Dog's Day Afternoon
 * Ginny the Parrot
 * Vicky's pet parrot who was fixed by Dr. Snipowitz, and seems very unenthusiastic about everything. First Appearance: Dog's Day Afternoon
 * Spunky
 * Vicky's pet hamster she introduced to Timmy shortly after his body swap adventure with Doidle. Timmy was going to warn Spunky what Vicky giving him a steak to eat meant, a visit to Dr. Snipowitz, but Spunky would not listen and mocked Timmy instead. First Appearance: Dog's Day Afternoon
 * Billy Gates
 * The creator of Microsoft, Bill Gates, was met as a child by Timmy Turner. Billy had Cosmo and Wanda as fairies in his youth. First Appearance: Father Time!
 * Sanjay's Mom
 * Sanjay's biological mother. Not much is known about her, as she has only spoken once in the entire series. First Appearance: Snow Bound
 * Chipper the Cat
 * Vicky's pet, a very disturbed looking cat. First Appearance: Dog's Day Afternoon
 * Happy the Goldfish
 * A pet fish that Vicky had fixed by Dr. Snipowitz, he floats unhappily in his fishbowl. First Appearance: Dog's Day Afternoon
 * Ginny the Parrot
 * Vicky's pet parrot who was fixed by Dr. Snipowitz, and seems very unenthusiastic about everything. First Appearance: Dog's Day Afternoon
 * Spunky
 * Vicky's pet hamster she introduced to Timmy shortly after his body swap adventure with Doidle. Timmy was going to warn Spunky what Vicky giving him a steak to eat meant, a visit to Dr. Snipowitz, but Spunky would not listen and mocked Timmy instead. First Appearance: Dog's Day Afternoon
 * Billy Gates
 * The creator of Microsoft, Bill Gates, was met as a child by Timmy Turner. Billy had Cosmo and Wanda as fairies in his youth. First Appearance: Father Time!
 * Spunky
 * Vicky's pet hamster she introduced to Timmy shortly after his body swap adventure with Doidle. Timmy was going to warn Spunky what Vicky giving him a steak to eat meant, a visit to Dr. Snipowitz, but Spunky would not listen and mocked Timmy instead. First Appearance: Dog's Day Afternoon
 * Billy Gates
 * The creator of Microsoft, Bill Gates, was met as a child by Timmy Turner. Billy had Cosmo and Wanda as fairies in his youth. First Appearance: Father Time!
 * The creator of Microsoft, Bill Gates, was met as a child by Timmy Turner. Billy had Cosmo and Wanda as fairies in his youth. First Appearance: Father Time!
 * A female comic book villain from the Crimson Chin universe. She wields a giant spatula. First Appearance: Chin Up!
 * Country Boy
 * A male comic book villain from the Crimson Chin universe. He wears a mask that is shaped like a barn and throws "pig grenades". First Appearance: Chin Up!
 * Wendell Bender
 * Dr. Bender's carbon copy looking son. According to Wendell, his father's weird behavior is the reason he has no friends. First Appearance: The Same Game
 * Beethoven
 * The famous musician Beethoven was brought back to life by Cosmo to be a part of his band, which was sent to the Dimmadome by Timmy to buy time for Chip Skylark to arrive at his concert. First Appearance: Boys in the Band
 * Pan
 * Pan was a mythological god that was part of Cosmo's band he made to try to quell the crowd at Chip Skylark's concert when Timmy was making Chip late. First Appearance: Boys in the Band
 * Internet Chaplain
 * After Timmy and Vicky kidnapped Chip Skylark, she hired a chaplain off the Internet to marry herself and Chip immediately. The chaplain was a geeky kid that looked younger than Vicky. First Appearance: Boys in the Band
 * Ryan McLane
 * Ryan McLane is the star of an action film called "Ryan McLane: Loose Cannon Cop Who Doesn't Play By The Rules". After Timmy watched his movie, he wished for his life to be just like an action movie. First Appearance: Action Packed
 * Spanish teacher
 * A Spanish Teacher whose class Cosmo and Wanda attended when they are posing as students at Timmy's school. First Appearance: Timvisible
 * The President
 * The President of the United States has shown up in several episodes, usually as a form of comic relief. The first time he appeared he was similar to George Bush, while his next appearance he resembled George Washington. First Appearance: That Old Black Magic
 * Dale Dimmadome
 * Doug Dimmadome's estranged son who was used by Vicky in a sweat shop to create lemonade. First Appearance: Nectar of the Odds
 * Grandma Vicky
 * A likeness of Vicky's grandmother appeared on a container of lemonade she was peddling. First Appearance: Nectar of the Odds
 * Veronica's Mom
 * Veronica's mother was heard off screen in her sole appearance in the series, but has never actually been seen. First Appearance: Information Stupor Highway
 * Sylvester Calzone
 * Sylvester Calzone is an actor who won a Dimmy for his films, mostly for punching out all the critics. In a later appearance, he can no longer speak in anything except mumbles. He is a parody of Sylvester Stallone. First Appearance: Movie Magic
 * Arnold Schwartzengerman
 * Arnold Schwartzengerman is an actor that appeared in a film festival creation funded by Tad and Chad. He is a parody of Arnold Schwarzenegger. First Appearance: Movie Magic
 * Jeff and Erik
 * Two Yugopotamian friends of Mark Chang, who speak and act like stereotypical teenagers, such as calling their journey through space to Earth a "road trip". They were only seen in two episodes. First Appearance: Totally Spaced Out
 * Skip Sparkypants
 * Skip Sparkypants is a rival singer to Chip Skylark. The two look exactly alike, except that Skip Sparkypants has different colored clothes and hair. First Appearance: Shiny Teeth
 * Elmer's Mom
 * Elmer's mother is a woman with glasses that has a large boil on her face just like her son. She has never spoken in an episode. First Appearance: Snow Bound
 * Elmer's Dad
 * Elmer's father appears sometimes in group shots with other parents, but has otherwise never spoken a line that wasn't sang in unison with other parents. Like his son, he has a large boil on his face. First Appearance: MicroPhony
 * Johnny Downpour
 * Johnny Downpour was a weatherman for Dimmsdale's local news. He was ran out of town by an angry mob when he predict the weather wrong. First Appearance: Mother Nature
 * Stormy Raynes
 * Stormy Raynes was a weatherman for Dimmsdale's local news. He too was ran out of town by an angry mob. First Appearance: Mother Nature
 * Vic the Babysitter
 * Vic was Mr. Crocker's babysitter in his childhood, since his mother worked two jobs. Like Vicky, he is very cruel and tortured young Denzel. His exact relation to Vicky, if any, is unknown. First Appearance: The Secret Origin of Denzel Crocker!
 * Nanette Ubetcha
 * Nanette was a news reporter in the 1970s that bears an uncanny resemblance to Chet Ubetcha, and is possibly his mother. First Appearance: The Secret Origin of Denzel Crocker!
 * Billy Blanks
 * The creator of Tae Bo, Billy Blanks, makes a brief appearance in the series helping Timmy Turner train to fight Francis. First Appearance: Kung Timmy
 * The Mayor of Chincinnati
 * First Appearance: Chin Up!
 * Beverly Boulevard
 * Beverly Boulevard is a reporter for the same news paper company that the Crimson Chin works as under his alter ego, Charles Hampton Indigo. He tries hard to impress her and gives into her every whim, but she seems indifferent to him. First Appearance: Crime Wave
 * The Baby
 * The baby was an unnamed baby girl that Beverly Boulevard gave to the Crimson Chin to watch over. First Appearance: Crime Wave
 * Papa Cosmo
 * Papa Cosmo is Cosmo's long last father. When Cosmo was just a baby, he turned his father into a fly and he was never seen again. First Appearance: This is Your Wish
 * Francis' Father
 * Francis' father is an in an out of jail ex-convict, often seen with police escort. First Appearance: Where's Wanda?
 * Abominable Snowman
 * The Abominable Snowman was a man in a snow costume that Timmy and Vicky ran from, thinking he was an actual monster, but he was really a pizza delivery man. First Appearance: Snow Bound
 * Flipsie
 * Flipsie is a toy robot dog that has one function: flipping. Dark Laser loves it and keeps it as his companion, going as far as to consider it a living being. First Appearance: Hard Copy
 * Pops the Adult
 * Pops the Adult is a man who was left at the Learn-A-Torium when he was just a kid, and his parents never returned to pick him up. He has been trying futilely to escape from the Learn-A-Torium ever since. First Appearance: Baby Face
 * Evil Bug
 * The evil bug was a small beetle like insect that crawled out of Vicky's butt when Timmy wished all her evilness away. The bug then began to search for a new host, going from Timmy's dad, to Principal Waxelplax, and finally setting its sights on the President of the United States before Vicky hopped in the way and it returned to her. First Appearance: Vicky Loses Her Icky
 * The Bad Parent Hunter
 * The Bad Parent Hunter is a man who exposes bad parents on national television by hunting them in a manner similar to the The Crocodile Hunter, Steve Irwin, whom he is a parody of. First Appearance: Nega-Timmy
 * Dr. Vulcan
 * Dr. Vulcan was a villain who captured Trixie and Chester after Timmy wished away all his emotions, so he didn't really care. Timmy eventually rescues Chester, and Dr. Vulcan later appears on a newspaper with Trixie hugging him, proclaiming him her new boyfriend. First Appearance: Emotion Commotion!
 * Elvis Presley
 * A fat Elvis Presley was dug up from the sands of Dimmsdale Beach in one episode. First Appearance: Beach Bummed!
 * King and Queen of Boudacia
 * The King and Queen of Boudacia are Princess Mandie's unnamed parents. Her father resembles a wolf man, while her mother looks more like her. They have no spoken lines and are only seen briefly. First Appearance: New Squid In Town!
 * Vicky-Bot
 * A robot version of Vicky was seen in the twenty year look into the future in Channel Chasers, babysitting Timmy's kids with all the same means of torment its creator once applied. First Appearance: Channel Chasers
 * Fairy Mason
 * First Appearance: Genie Meanie Minie Mo
 * Flappy Bob's parents
 * First Appearance: School's Out!: The Musical
 * Ivette Ubetcha
 * First Appearance: School's Out!: The Musical
 * Dr. Poof Everwish
 * First Appearance: Blondas Have More Fun!
 * Bob Glimmer
 * A fairy news reporter and host for the Fairy World television show, Fairytainment Tonite. First Appearance: Blondas Have More Fun!
 * Carly
 * First Appearance: Five Days of F.L.A.R.G.
 * Pierre
 * First Appearance: Hassle in the Castle
 * Sammy
 * First Appearance: Hassle in the Castle
 * Philip the Nickel
 * First Appearance: Hassle in the Castle
 * Suzy Califragelisticexpialadocious
 * First Appearance: Remy Rides Again
 * Binky's Mom
 * First Appearance: Timmy TV
 * Sanjay's Stepbrother
 * Sanjay's step brother is a military soldier that occasionally gives his step brother a lift to school. First Appearance: Oh, Brother!
 * AJ-5000
 * A.J. built this older brother robot to protect him from Francis. It self destructed when it saw how much cooler Timmy's wished-up older brother was. First Appearance: Oh, Brother!
 * Chippington Skylark
 * First Appearance: The "Good Old Days!"
 * Simon Sparklefield
 * First Appearance: Fairy Idol
 * Dirtybeard
 * First Appearance: Odd Pirates
 * Dirtybeard's parrot
 * First Appearance: Odd Pirates
 * Dimmsdale Pirates
 * A professional baseball team for the city of Dimmsdale. They play in Pirate Stadium. First Appearance: Odd Pirates
 * Swizzle
 * Swizzle is a fairy. She is Molly's fairy godparent, who only appeared briefly at the end of her godchild's lone episode in the series. First Appearance: Wishing Well
 * Irving
 * Irving is Dwight's fairy godfather, who appeared briefly at the end of the only episode Dwight was in. First Appearance: Wishing Well
 * Christie Glamorpuss
 * A reporter for the Party Channel that was present at Timmy Turner's Septimberfest in Hollywood. First Appearance: Momnipresent
 * Mr. & Mrs. Dinglefitz
 * Mr. and Mrs. Dinglefitz are Turbo Thunder's parents, who were captured by the Darkness, and then later freed when the Darkness became good. First Appearance: Wishology
 * Polar Bear Guardian
 * First Appearance: Wishology
 * Rock Guardian
 * First Appearance: Wishology
 * Grandpa Crocker
 * Grandpa Crocker is Mr. Crocker's grandfather that has appeared in a few brief scenes. In one, he was on a picture in the Crocker's home, and in his actual appearance, Mr. Crocker revealed he used his grandfather to make a literal grandfather clock before the scene cut to Grandpa Crocker acting like a clock. First Appearance: Fly Boy
 * Dash Baxter
 * Dash Baxter, a character from Danny Phantom, made a cameo appearance in the episode Fly Boy where he was featured in a television movie everyone in Dimmsdale but Timmy was allowed to watch. First Appearance: Fly Boy
 * Dr. Phyllis Fancyfree
 * Dr. Fancyfree is a psychiatrist that temporarily cured Mr. Crocker of his obsession with fairies. Timmy eventually appeared on a flying carpet outside her window and she started screaming fairies and spazzing out, just like Mr. Crocker. First Appearance: Crocker Shocker
 * Lauren Ledergerber
 * Lauren Ledergerber was the leader of B.R.A.T., an evil babysitter's club, who kicked Vicky out for letting Timmy save her life. After she saw Vicky tormenting Timmy again, she offered Vicky a chance to rejoin, but Vicky took that opportunity to take over B.R.A.T. herself. First Appearance: Frenemy Mine
 * Alyssa
 * Alyssa is a member of B.R.A.T. First Appearance: Frenemy Mine
 * Mrs. Ledergerber
 * Mrs. Ledergerber is Lauren's mother, who scolded her daughter for having torches on her walls during her babysitter's club meeting. First Appearance: Frenemy Mine
 * Insurance workers
 * A few office workers in a building that were turned into chickens by Poof. A few of them resemble characters from the sitcom "The Office". First Appearance: Chicken Poofs
 * Amazonian Fairies
 * First Appearance: Chicken Poofs
 * Delores
 * First Appearance: Chicken Poofs
 * Kimmy
 * Kimmy is a girl that looks almost identical to Timmy Turner, except with longer hair. Sanjay chose to bring her to the school dance. First Appearance: Stupid Cupid
 * Octopus Robot
 * First Appearance: Double-Oh Schnozmo!
 * Amazonian Fairies
 * First Appearance: Double-Oh Schnozmo!
 * Mrs. Hembel
 * Mrs. Hembel is a decrepit looking old woman that races against Mrs. Turner (Actually Timmy in her body) when they are making a mad dash for the last pair of socks on sale at the mall. First Appearance: Manic Mom-Day
 * Crazy, the Eighth Dwarf
 * Crazy is the "eighth dwarf" that chases Timmy, Mr. Crocker, and Cosmo out of a mine when they were looking for gold in it to pay the McPunchies with. First Appearance: Crocker of Gold
 * Hawaiians
 * When Timmy and his family went on vacation to Hawaii, he met several surfer kids who he wanted to impress. First Appearance: Beach Blanket Bozos
 * Grass Skirt Girl
 * During Timmy's Hawaiian vacation, he wanted to impress a beautiful dancing girl in a grass skirt. First Appearance: Beach Blanket Bozos
 * Cracken
 * First Appearance: Beach Blanket Bozos
 * Melvin
 * Melvin was a kid that told Timmy's Dad many years ago that he was "too cool for school", so Mr. Turner quit the 5th grade. Decades later, when he is trying to complete the 5th grade again, Mr. Turner runs into Melvin, now a janitor, who tells him he is still too cool for school, nearly causing Timmy's Dad to flunk out again. First Appearance: Old Man And The C-
 * Wink Winkydink
 * Wink Winkydink is the game show host of a program called "Are You Brighter Than a 6th Grader?". First Appearance: Old Man And The C-
 * Mother Nature
 * First Appearance: Balance of Flour
 * Mom's Meatloaf
 * First Appearance: Food Fight
 * Aliens
 * A few unknown aliens were allowed on Dark Laser's Death Ball, where they were customers and tourists to the various attractions and shops on the ship. First Appearance: Please Don't Feed The Turners
 * Caged Alien Animals
 * Alien monsters that were seen in the cages in Dark Laser's Alien Zoo. They were later freed by Timmy. First Appearance: Please Don't Feed The Turners
 * Four Armed Butler
 * First Appearance: Please Don't Feed The Turners
 * Orcatron
 * First Appearance: Please Don't Feed The Turners
 * Leonard Von Strangle
 * First Appearance: Cosmo Rules
 * Irving Schwab
 * First Appearance: Cosmo Rules
 * Susan C. Anthony
 * First Appearance: Cosmo Rules
 * Junior Mrs. Universe
 * First Appearance: Cosmo Rules
 * Saber-Toothed Tigers With Night Vision
 * First Appearance: Lights Out
 * Elf
 * First Appearance: Dad Overboard
 * Stanley & His Wife
 * First Appearance: Dad Overboard
 * Eduardo
 * First Appearance: Dad Overboard
 * Sergeant Flinch
 * First Appearance: Dad Overboard
 * General McCloud
 * First Appearance: Dad Overboard
 * Hairy Hobo
 * First Appearance: Farm Pit
 * Professor Gunderson
 * First Appearance: Crock Talk
 * Chupacabras
 * First Appearance: Crock Talk
 * Bigfoot
 * First Appearance: Crock Talk
 * Swamp Monster
 * First Appearance: Crock Talk
 * Mrs. Marinelli
 * First Appearance: Operation: Dinkleberg
 * Amazonian Fairies
 * First Appearance: Chicken Poofs
 * Delores
 * First Appearance: Chicken Poofs
 * Kimmy
 * Kimmy is a girl that looks almost identical to Timmy Turner, except with longer hair. Sanjay chose to bring her to the school dance. First Appearance: Stupid Cupid
 * Octopus Robot
 * First Appearance: Double-Oh Schnozmo!
 * Amazonian Fairies
 * First Appearance: Double-Oh Schnozmo!
 * Mrs. Hembel
 * Mrs. Hembel is a decrepit looking old woman that races against Mrs. Turner (Actually Timmy in her body) when they are making a mad dash for the last pair of socks on sale at the mall. First Appearance: Manic Mom-Day
 * Crazy, the Eighth Dwarf
 * Crazy is the "eighth dwarf" that chases Timmy, Mr. Crocker, and Cosmo out of a mine when they were looking for gold in it to pay the McPunchies with. First Appearance: Crocker of Gold
 * Hawaiians
 * When Timmy and his family went on vacation to Hawaii, he met several surfer kids who he wanted to impress. First Appearance: Beach Blanket Bozos
 * Grass Skirt Girl
 * During Timmy's Hawaiian vacation, he wanted to impress a beautiful dancing girl in a grass skirt. First Appearance: Beach Blanket Bozos
 * Cracken
 * First Appearance: Beach Blanket Bozos
 * Melvin
 * Melvin was a kid that told Timmy's Dad many years ago that he was "too cool for school", so Mr. Turner quit the 5th grade. Decades later, when he is trying to complete the 5th grade again, Mr. Turner runs into Melvin, now a janitor, who tells him he is still too cool for school, nearly causing Timmy's Dad to flunk out again. First Appearance: Old Man And The C-
 * Wink Winkydink
 * Wink Winkydink is the game show host of a program called "Are You Brighter Than a 6th Grader?". First Appearance: Old Man And The C-
 * Mother Nature
 * First Appearance: Balance of Flour
 * Mom's Meatloaf
 * First Appearance: Food Fight
 * Aliens
 * A few unknown aliens were allowed on Dark Laser's Death Ball, where they were customers and tourists to the various attractions and shops on the ship. First Appearance: Please Don't Feed The Turners
 * Caged Alien Animals
 * Alien monsters that were seen in the cages in Dark Laser's Alien Zoo. They were later freed by Timmy. First Appearance: Please Don't Feed The Turners
 * Four Armed Butler
 * First Appearance: Please Don't Feed The Turners
 * Orcatron
 * First Appearance: Please Don't Feed The Turners
 * Leonard Von Strangle
 * First Appearance: Cosmo Rules
 * Irving Schwab
 * First Appearance: Cosmo Rules
 * Susan C. Anthony
 * First Appearance: Cosmo Rules
 * Junior Mrs. Universe
 * First Appearance: Cosmo Rules
 * Saber-Toothed Tigers With Night Vision
 * First Appearance: Lights Out
 * Elf
 * First Appearance: Dad Overboard
 * Stanley & His Wife
 * First Appearance: Dad Overboard
 * Eduardo
 * First Appearance: Dad Overboard
 * Sergeant Flinch
 * First Appearance: Dad Overboard
 * General McCloud
 * First Appearance: Dad Overboard
 * Hairy Hobo
 * First Appearance: Farm Pit
 * Professor Gunderson
 * First Appearance: Crock Talk
 * Chupacabras
 * First Appearance: Crock Talk
 * Bigfoot
 * First Appearance: Crock Talk
 * Swamp Monster
 * First Appearance: Crock Talk
 * Mrs. Marinelli
 * First Appearance: Operation: Dinkleberg
 * Elf
 * First Appearance: Dad Overboard
 * Stanley & His Wife
 * First Appearance: Dad Overboard
 * Eduardo
 * First Appearance: Dad Overboard
 * Sergeant Flinch
 * First Appearance: Dad Overboard
 * General McCloud
 * First Appearance: Dad Overboard
 * Hairy Hobo
 * First Appearance: Farm Pit
 * Professor Gunderson
 * First Appearance: Crock Talk
 * Chupacabras
 * First Appearance: Crock Talk
 * Bigfoot
 * First Appearance: Crock Talk
 * Swamp Monster
 * First Appearance: Crock Talk
 * Mrs. Marinelli
 * First Appearance: Operation: Dinkleberg
 * Chupacabras
 * First Appearance: Crock Talk
 * Bigfoot
 * First Appearance: Crock Talk
 * Swamp Monster
 * First Appearance: Crock Talk
 * Mrs. Marinelli
 * First Appearance: Operation: Dinkleberg
 * Mrs. Marinelli
 * First Appearance: Operation: Dinkleberg
 * First Appearance: Operation: Dinkleberg

Alternate forms
Several alternate forms have appeared of the characters, usually as a direct result of wishing.

Crash Nebula
These are one-time characters that appeared in the show-within-a-show spin-off, "Crash Nebula", which was broadcast as part of Season 5. However, the spin-off was never picked up as a series by Nickelodeon, and none of these characters have appeared since.

Live action
The tenth year anniversary special "A Fairly Odd Movie: Grow Up, Timmy Turner!" are played by live action characters. Thirteen years have passed since the main series, and everyone but Timmy Turner has grown up.