Sean Connery

Character: Samson Shillitoe

Joanne Woodward

Character: Rhoda Shillitoe

Jean Seberg

Character: Lydia West

Colleen Dewhurst

Character: Dr. Vera Kropotkin

Jackie Coogan

Character: Mr. Fitzgerald

Patrick O'Neal

Character: Dr. Oliver West

Clive Revill

Character: Dr. Menken

Werner Peters

Character: Dr. Freddie Vorbeck

John Fiedler

Character: Daniel K. Papp

Kay Medford

Character: Mrs. Fish

Zohra Lampert

Character: Evelyn Tupperman

Sorrell Booke

Character: Leonard Tupperman

Sue Ane Langdon

Character: Miss Walnicki

Bibi Osterwald

Character: Mrs. Fitzgerald

Mabel Albertson

Character: Chairwoman

Renée Taylor

Character: Myrna

Al Bain

Character: Bibman

Calvin Brown

Character: Boxer in Gym

Lovyss Bradley

Character: Clubwoman

Joyce Perry

Character: Receptionist

James Millhollin

Character: Rollie Butter

Nora Denney

Character: Waitress

Roland La Starza

Character: Angie

Dee Carroll

Character: Nurse (uncredited)