Seth Green Creator, Voice, Executive Producer Matthew Senreich Creator, Executive Producer Amy Smart Guest Voice Linda Cardellini Guest Voice Dave Coulier Guest Voice Phyllis Diller Guest Voice Sarah Michelle Gellar Guest Voice Melissa Joan Hart Guest Voice Don Knotts Guest Voice Matthew Lillard Guest Voice Freddie Prinze Jr. Guest Voice Fred Tatasciore Guest Voice Douglas Goldstein Executive Producer Eric Towner Executive Producer John Harvatine IV Executive Producer Tom Root Executive Producer