Richard Schaal
— The Man in the Cube
Hugh Webster
— Arnie
Rex Sevenoaks
— Manager
Jack Van Evera
— Prisoner
John Granik
— Straight Man / Sergeant
Guy Sanvido
— Comic Fritz
Eliza Creighton
— Seductress
Don Crawford
— Black Militant
William Osler
— Scientist
Jerry Nelson
— Monk
Sandra Scott
— Decorator
Claude Rae
— Dr. Conners
Don McGill
— Professor
Ralph Endersby
— Guitarist
Trudy Young
— Liza 1