James Caan as Brian Piccolo

Billy Dee Williams as Gale Sayers

Jack Warden as Coach Halas

Bernie Casey as J.C. Caroline

Shelley Fabares as Joy Piccolo

David Huddleston as Ed McCaskey

Judy Pace as Linda Sayers

Abe Gibron as Abe Gibron

Jack Concannon as Jack Concannon

Ed O'Bradovich as Ed O'Bradovich

Harold 'Happy' Hairston as Veteran Player #1

Ron Feinberg as Veteran Player #2

Ji-Tu Cumbuka as Roommate

Jim Boeke as Veteran Player #3

Larry Delaney as Dr. Fox

Stephen Coit as Mr. Eberle

Doreen Lang as Nurse #1

Jennifer Kulik as Nurse #2

Allen Secher as Hotel Man

Stu Nahan as Speaker

Mario Machado as Reporter #1

Bud Furillo as Reporter #2

Jack Wells as Toastmaster

Dick Butkus as Dick Butkus (uncredited)

Mike Ditka as Mike Ditka (archive footage) (uncredited)

January L'Angelle as Girl in Hospital (uncredited)