Rat King / Leaf Beard (voice) / Vice President Blowfish (voice)

Kurt Gödel

Joff (voice)

Imp

Dr. Venture (voice)

Gavin Donahue

Larry

Grand View High School Principal

Maaldorian Doctor

Walter Morgan / John Fox / Walter Morgan / Richard Simmons

Thriffith (voice)

Confused Fan (voice)

Lemur #1 (voice)

Rod Flexner

Bram

Lab Technician