Gary Coleman
— Jimmy
Don Adams
— Harry Walker
Paul Le Mat
— John Dortmunder
Ruth Gordon
— Bernice
Cleavon Little
— Herb
Fay Hauser
— Nina
Pat Morita
— Maurice
Walter Olkewicz
— Kelp
Dee Wallace
— May
Avery Schreiber
— Dr. Stevens
Robert F. Hoy
— 1st Trooper
Steve Chambers
— 2nd Trooper
Sarina C. Grant
— Pearl (as Sarina Grant)
Lew Horn
— Kimball
Frank Miller
— Cop