He is voiced by Tara Strong, who also does Timmy's voice, from his debut through Season 9.
In his lone appearance in Season 10 (Certifiable Super Sitter, his only lines are him doing impressions of celebrities, which are voiced by Jeff Bennett, Daran Norris and Eric Bauza. However, he does make an "Ooh!" sound at one point, which is in Tara Strong's voice.
Until School of Crock, Poof only says his own name frequently ( "Poof, poof" ) but some of the characters strangely understand this. The only known person/fairy who seems to be aware that Poof just says his own name frequently appears to be Foop as shown in Spellementary School.
When Poof said "I want my rattle", he sounded like what he always was when he said "poof, poof". But when Poof speaks again, he sounds like Timmy in a deeper voice.
By the end of "School of Crock," Foop is thankful for Poof saving his life and apologizes for trying to annihilate him all that time. This may indicate that after this episode the two will be finally cool with each other.
As he was the last fairy baby to born until now, his parents (Cosmo and Wanda) are the youngest parents on Fairy World and he is the youngest fairy.
Because of his eyelashes and color, many people have confused him for a girl.
Cosmo sometimes calls him a she, despite knowing that he's a boy.
Poof's first words in a sentence were "Yo, man. This gonna be so cool man. We're going to be bumping', man. Trying' to help the boys out. You know how we do it. You feel me, dawg?" (Grow Up, Timmy Turner!). Although, he had already said single words, like "mommy", "daddy", "Crocker" and "Timmy". He also said "Hide and seek!" in He Poofs He Scores.
Starting in "School of Crock", Poof learns how to talk permanently, his first words being "I... want... my... rattle!".
Apparently, Poof thinks that Timmy should get rid of his pink hat.
In "Wishing Well", he appears to have a great bond with Timmy, since he was the only other person enjoying the wishes that Timmy was making (Cosmo and Wanda were just worn out due to too many wishes being made). When Timmy was taken to Wishing Well due to overworking his godparents, he became so sad that he continued to cry until Cosmo gave him a Timmy doll which stopped Poof from crying.
He is the main character in most of the Spellementary School episodes instead of Timmy.
He most likely gets his love of fudge/chocolate (seen in Balance Of Flour) from his mother, Wanda.
When someone or something touches Poof, his body will squeak.
Poof is the only addition to the main cast to appear in more than one season, being a series regular from Seasons 6 to 9, and his lone appearance in Season 10. Sparky only appears in the series's ninth season and did not return for Season 10 due to bad reception, and Chloe Carmichael only appears in the series's tenth season as the show has been cancelled following this season's completion.
Poof's crying is the same as that of Dil Pickles from the fellow Nickelodeon show Rugrats. Both Poof and Dil are voiced by Tara Strong.
Poof, Sparky and Chloe are the only main characters to never be seen in a crossover episode.
Poof was introduced in "Fairly Odd Baby", which also revealed that he was a boy and that Cosmo, Poof's father, was the last baby born before him. He has appeared in every episode since then until "Let Sleeper Dogs Lie".
Poof was in the 2009, 2010 and 2011 Kids' Choice Awards.
In the T.U.F.F. Puppy episode "Mall Rat", Poof makes a cameo as a fountain decoration (in fish form).
A framed photo of Poof appears in Cosmo and Wanda's apartment in The Fairly OddParents: A New Wish, confirming he still exists in that show's continuity.
In "Poof's Playdate," Timmy wished that all fairy babies changed into grownups. But Poof did not change into a grown up.
Poof doesn't have teeth, but in "Poof Proof", Poof has one tooth. In addition, Poof has a full set of teeth (or two) in some episodes.
When Poof sucks his thumb in "Fairly OddBaby", he floats with a glow around him, but immediately, Anti-Cosmo interrupts it. Perhaps when he sucked his finger, it also had powers.
On Wishology: The Big Beginning, when all the fairies in Fairy World turn into gumballs and the fat kid buys Binky Abdul and chews him, all the fairies (including Poof) cry out "AAAH! The horror!" as if like Poof can talk in complete sentences. Same goes with the fairies yelling "AAAH! The quarters!"
Poof has appeared in the alternate universe in Turner Back Time even though he shouldn't as he was a wish made by Timmy.
Poof has appeared in the Dimmsdale Tales' title card even though he doesn't appear in that episode himself.
"No problem, Foop! Do you think we can be friends now?"
(with Cosmo's voice) "Hey, guys! This is the best party ever!"
"Why don't you read me a story, until you fall asleep? Then I'll watch TV."
Wanda: "Poof, it's time for bed."
Poof: "Not tired!"
"I ate 11 pounds of chocolate! I'll probably be awake until Easter! (sudden pause) Then I'll get more chocolate!"
"I dribble in two ways."
"I brought some friends home! Well, one friend and one harbinger of doom. It's gonna be HUGE!"
"Miserable?"
"Hey, kid. I'm Poof. Well, at least I was. I changed my name to Peri! Like- Periwinkle? Check the threads, huh? I’m your new fairy godparent! And, kid, I'll take you from Dev, to Dev-vine."
Dev Dimmadome: "Ugh. Are you tired already? Get moving!"
Peri: "I wouldn't be so tired if you hadn't spent all morning wishing for the perfect cupcake!"
"You know, perfection is subjective. You might want to ask for a specific flavor!"
"I haven't seen them since they got back from their 10,000-year vacation! I haven't even told them that I’m fairy-godparenting yet. They can't see me like this."
"This would totally give my dad the heebie-jeebies."
Dev Dimmadome: "Look, I’m done with these stupid small potato scares. I'm gonna do a big potato scare."
Peri: "As in- you're gonna wish for a BIG potato? So you can make French fries to share with the other kids? And scare them with your generosity?"
"Oh, boy."
"Oh, just give it to her, Dev. I'll never be able to face my parents if my first fairy godkid gets obliterated by an ancient ghost!"
