 Jackie RobinsonSelf | Self |
 Ruby DeeRae Robinson | Rae Robinson |
 Minor WatsonBranch Rickey | Branch Rickey |
 Louise BeaversJackie's Mother | Jackie's Mother |
 Richard LaneHopper | Hopper |
 Harry ShannonCharlie | Charlie |
 Ben LessyShorty | Shorty |
| WWilliam 'Bill' SpauldingBill Spaulding | Bill Spaulding |
 Billy WayneClyde Sukeforth | Clyde Sukeforth |
 Joel FluellenMack Robinson | Mack Robinson |
 Bernie HamiltonErnie | Ernie |
 Kenny WashingtonTigers Manager | Tigers Manager |
 Pat FlahertyKarpen | Karpen |
| LLarry McGrathUmpire | Umpire |
| EEmmett SmithCatcher | Catcher |
| HHoward Louis McNeelyJackie, as a boy | Jackie, as a boy |
| GGeorge DockstaderBill | Bill |
| MMarvelle AndrePete's Wife (uncredited) | Pete's Wife (uncredited) |
 Bill BaldwinBaseball Broadcaster (uncredited) | Baseball Broadcaster (uncredited) |
| SSam BalterBaseball Announcer in Booth (uncredited) | Baseball Announcer in Booth (uncredited) |
| MMildred BoydRoommate of Rae (uncredited) | Roommate of Rae (uncredited) |
| TTom ColemanSports Board Clerk (uncredited) | Sports Board Clerk (uncredited) |
 Laurence CrinerMinister - Reverend Carter (uncredited) | Minister - Reverend Carter (uncredited) |
 Joe DevlinTough Lodge Member in Stands (uncredited) | Tough Lodge Member in Stands (uncredited) |
 Jimmie DoddUCLA Scout (uncredited) | UCLA Scout (uncredited) |
 Franklyn FarnumBaseball Fan in Stands (uncredited) | Baseball Fan in Stands (uncredited) |
 Roy GlennMr. Gaines - Attorney (uncredited) | Mr. Gaines - Attorney (uncredited) |
| JJoe GrayDalby (uncredited) | Dalby (uncredited) |
 Phyllis KennedyBaseball Fan in Stands (uncredited) | Baseball Fan in Stands (uncredited) |
 Donald KerrReporter (uncredited) | Reporter (uncredited) |
