Leonard Nimoy
— Paul 'Monk' Baroni
Richard Rober
— Father Callahan
Mona Knox
— June Travers
Bruce Cabot
— Mr. Hellman
Allene Roberts
— Emily Brooks
Budd Jaxon
— Knuckles
Archer MacDonald
— Pete
Kathleen Freeman
— Maria Baroni
Jack Larson
— Angelo
Joseph Mell
— Gino Baroni (as Joe Mell)
Paul Maxey
— Al Petry
Stuart Randall
— Mr. Moore
Wayne Mallory
— Tony (as Chad Mallory)
Ted Avery
— Joey
Madelynn Broder
— Little Girl in Church