Grandpa Crocker

Grandpa Crocker is the grandfather of Denzel Crocker. He has only made one appearance in The Fairly OddParents.

Background
When Mr. Turner had to go back to the fifth grade since he dropped out when he was a kid, he wrote an essay on grandfather clocks for class. In his essay, Mr. Turner pointed out that grandfather clocks are not made with real grandfathers, causing Mr. Crocker to panic and release his own grandfather from a clock he built.