Derf

Derf is Fred's alter-ego and his imaginary friend. He appears in the first two films of FRED. He is potrayed by Lucas Cruikshank.

Appearance
Derf seems to be just cool, chilled, and the alter-ego of Fred. He first appears on the bus, sitting next to Fred and listens to Fred talk about Judy for hours, until he disappears. Derf has lie detectors on his eyes. Derf doesn't really care that he is weird.

Trivia

 * Derf doesn't appear on the third film.