Dean Crept
Mike Mattress
Buster Lloyd
Greydon Lake
Dalton
Gloria Lake
Winiford 'Weenie Man'
Dr. Boifford
Marete Morrisey
Martin / Pete
Lt. Langdon
Psychiatrist
The Devil
Cheetah Man
Lester
Crabby
Police Officer
Jameson (as William McGuire)
Avon
Seedy Neighbor (scenes deleted)
The Robot (uncredited)