Don Murray Director, Screenwriter Pat Boone David Wilkerson Actor Erik Estrada Nicky Cruz Actor Jacqueline Giroux Rosa Actor Jo-Ann Robinson Little Bo Actor Dino De Filippi Israel Actor Don Blakely Abdullah Actor Gil Frazier Big Cat Actor Don Lamond Sergeant Delano Actor Sam Capuano Mr. Gomez Actor Alex Colon Mingo Actor Hechter Ubarry Moonlight Actor Dorothy James Mrs. Gomez Actor David Connell Pusher Actor Michelle Galjour Angela Actor Stew Silver Augie Actor James Bonnet Screenwriter Dick Ross Producer Ralph Carmichael Music Julian C. Townsend Cinematographer Angelo Ross Film Editing Kleg Seth Casting Charles Bailey Art Director Pearl Somner Costume Design