Ali MacGraw
Ryan O'Neal
John Marley
Ray Milland
Russell Nype
Katharine Balfour
Sydney Walker
Robert Modica
Walker Daniels
Tommy Lee Jones

Ali MacGraw as Jennifer Cavalleri
Ryan O'Neal as Oliver Barrett IV
John Marley as Phil Cavalleri
Ray Milland as Oliver Barrett III
Russell Nype as Dean Thompson
Katharine Balfour as Mrs. Barrett (as Katherine Balfour)
Sydney Walker as Dr. Shapely
Robert Modica as Dr. Addison
Walker Daniels as Ray Stratton
Tommy Lee Jones as Hank Simpson (as Tom Lee Jones)
John Merensky as Steve
Andrew Duncan as Reverend Blauvelt
Charlotte Ford as Clerk, Mount Sinai Hospital
Sudie Bond as Cornell Hockey Player (uncredited)
Bob O'Connell as Tommy the Doorman (uncredited)