Jackie Robinson as Self

Ruby Dee as Rae Robinson

Minor Watson as Branch Rickey

Louise Beavers as Jackie's Mother

Richard Lane as Hopper

Harry Shannon as Charlie

Ben Lessy as Shorty

William 'Bill' Spaulding as Bill Spaulding

Billy Wayne as Clyde Sukeforth

Joel Fluellen as Mack Robinson

Bernie Hamilton as Ernie

Kenny Washington as Tigers Manager

Pat Flaherty as Karpen

Larry McGrath as Umpire

Emmett Smith as Catcher

Howard Louis McNeely as Jackie, as a boy

George Dockstader as Bill

Marvelle Andre as Pete's Wife (uncredited)

Bill Baldwin as Baseball Broadcaster (uncredited)

Sam Balter as Baseball Announcer in Booth (uncredited)

Mildred Boyd as Roommate of Rae (uncredited)

Tom Coleman as Sports Board Clerk (uncredited)

Laurence Criner as Minister - Reverend Carter (uncredited)

Joe Devlin as Tough Lodge Member in Stands (uncredited)

Jimmie Dodd as UCLA Scout (uncredited)

Franklyn Farnum as Baseball Fan in Stands (uncredited)

Roy Glenn as Mr. Gaines - Attorney (uncredited)

Joe Gray as Dalby (uncredited)

Phyllis Kennedy as Baseball Fan in Stands (uncredited)

Donald Kerr as Reporter (uncredited)

Joe Kirk as Tony (uncredited)

George Metkovich as Baseball Player (uncredited)

Ralph Montgomery as Reporter (uncredited)

Charles Morton as Baseball Fan in Stands (uncredited)

Dewey Robinson as Brooklyn Fan in Stands (uncredited)

Ben Welden as Tough Lodge Member in Stands (uncredited)

Dick Wessel as Tough Lodge Member in Stands (uncredited)

Dick Williams as Jersey City Pitcher/Second Baseman (uncredited)