David Brian
— Rip MacCool
Arlene Dahl
— Lily Douvane
Barry Sullivan
— Johnny Sanderson
Mercedes McCambridge
— Ada Stritch
Paula Raymond
— Zoe Carnot
Claude Jarman Jr.
— Rip MacCool (age 16)
Lon Chaney Jr.
— Shocker / Schockovitz Ninkovitch (as Lon Chaney)
Monica Lewis
— Cafe Singer
John Hoyt
— Flutey Johnson
Roland Winters
— Alexander Tomson
Barbara Billingsley
— Miss Meadson
Hayden Rorke
— Carlson
Mae Clarke
— Nurse
Percy Helton
— Lawyer Anderson
Nedrick Young
— Accountant