Rock Hudson as Antiochus 'Tony' Wilson

Salome Jens as Nora Marcus

John Randolph as Arthur Hamilton

Will Geer as Old Man

Jeff Corey as Mr. Ruby

Richard Anderson as Dr. Innes

Murray Hamilton as Charlie Evans

Karl Swenson as Dr. Morris

Khigh Dhiegh as Davalo

Frances Reid as Emily Hamilton

Wesley Addy as John

John Lawrence as Texan

Elisabeth Fraser as Plump Blonde

Dodie Heath as Sue Bushman

Robert Brubaker as Mayberry

Jane Wald as Party Guest

Dorothy Morris as Mrs. Filter

Frank Campanella as Man in Station

Barbara Werle as Secretary

Edgar Stehli as Tailor Shop Presser

Aaron Magidow as Meat Man

De De Young as Nurse

Françoise Ruggieri as Girl in Boudoir

Thom Conroy as Dayroom Attendant

Nedrick Young as Henry Bushman

Kirk Duncan as Mr. Filter

William Wintersole as Doctor in Operating Room

Paul Kent as Party Guest

Rudy Germane as Patient (uncredited)

Stuart Hall as Patient (uncredited)