Kirk Douglas as Eddie Anderson

Faye Dunaway as Gwen

Deborah Kerr as Florence Anderson

Richard Boone as Sam Arness

Hume Cronyn as Arthur Houghton

Michael Higgins as Michael Anderson

Carol Eve Rossen as Gloria Anderson

William Hansen as Dr. Weeks

Harold Gould as Dr. Leibman

Michael Murphy as Father Draddy

John Randolph Jones as Charles

Anne Hegira as Thomna

Charles Drake as Finnegan

E.J. André as Uncle Joe

Philip Bourneuf as Judge Morris

Dianne Hull as Ellen Anderson

Ann Doran as Hospital Nurse (uncredited)

Raymond Guth as Guard (uncredited)

Paul Newlan as Mr. Meyer (uncredited)

Barry Sullivan as Chet Collier (uncredited)

Jim Halferty as Evangelos - Age 18 (uncredited)

Stephen Coit as Santa Claus (uncredited)

Al McGranary as Board Member (uncredited)

Dee Carroll as Nurse (uncredited)