|Also Known As||None|
|Interests||Lil DeVille (former love interest)|
|Voice Actor||Jessica DiCicco|
|First Appearance||"Runaround Susie" (2004)|
|Last Appearance||"Runaround Susie" (2004)|
Jeffrey is a character who only appears in "All Grown Up!" in the episode "Runaround Susie". According to Lil, Jeffrey was madly in love with her. Throughout the episode, Jeffrey is seen pestering Lil until she got annoyed and came up the idea to use Phil as a decoy to pretend to be her so she can part ways from him. He is an annoying and disgusting kid, who ironically enough, dislikes Phil's repulsive antics.
Jeffrey is a light-skinned kid who wears black glasses and has blonde spiked hair. He wears a light green shirt and a sweater vest on top.
- He's "madly" in love with Lil
- Lil describes Jeffrey as "America's most wanted misuser of hair-gel" and the "lamest boy on the planet".
- Jeffrey is not afraid to show his affection to Lil as he eagerly chats with her and does disgusting things around her.
- His character design looks very similar to Sam Dullard from "Rocket Power".