Jane Fonda as Gloria Beatty

Michael Sarrazin as Robert Syverton

Susannah York as Alice LeBlanc

Gig Young as Rocky Gravo

Red Buttons as Sailor

Bonnie Bedelia as Ruby Bates

Michael Conrad as Rollo

Bruce Dern as James Bates

Al Lewis as Turkey

Robert Fields as Joel

Severn Darden as Cecil

Allyn Ann McLerie as Shirl

Madge Kennedy as Mrs. Laydon

Jacquelyn Hyde as Jackie

Felice Orlandi as Mario

Art Metrano as Max

Gail Billings as Lillian

Lynn Willis as Coley James

Maxine Greene as Agnes

Mary Gregory as Nurse

Robert Dunlap as College Boy

Paul Mantee as Jiggs

Tim Herbert as Doctor

Tom McFadden as Second Trainer

Noble 'Kid' Chissell as First Trainer

Ian Abercrombie as Male Dancer #74 (Uncredited)

Teddy Buckner as Band Member (Uncredited)

Fritzi Burr as Nurse (Uncredited)

Minta Durfee as Marathon Spectator (Uncredited)

Rudy Germane as Marathon Spectator (uncredited)