| John Wayne | Sean Thornton |
| Maureen O'Hara | Mary Kate Danaher |
| Barry Fitzgerald | Michaleen Oge Flynn |
| Ward Bond | Father Peter Lonergan |
| Victor McLaglen | Squire 'Red' Will Danaher |
| Mildred Natwick | The Widow Sarah Tillane |
| Francis Ford | Dan Tobin |
| Eileen Crowe | Mrs. Elizabeth Playfair |
| May Craig | Fishwoman with Basket at Station |
| Arthur Shields | Reverend Cyril Playfair |
| Charles B. Fitzsimons | Hugh Forbes (as Charles FitzSimons) |
| James O'Hara | Father Paul (as James Lilburn) |
| Sean McClory | Owen Glynn (as Sean McGlory) |
| Jack MacGowran | Ignatius Feeney (as Jack McGowran) |
| Joseph O'Dea | Molouney - Train Guard |
| Eric Gorman | Costello - Engine Driver |
| Kevin Lawless | Train Fireman |
| Paddy O'Donnell | Railway Porter |
| Frank Baker | Man in Bar (uncredited) |
| Tony Canzoneri | Boxing Second (uncredited) |
| Ruth Clifford | Mother (uncredited) |
| Maureen Coyne | Dan Tobin's Daughter - Ireland (uncredited) |
| Ken Curtis | Dermot Fahy (uncredited) |
| Mimi Doyle | Dan Tobin's Daughter - USA (uncredited) |
| Douglas Evans | Ring Physician (uncredited) |
| Robert Foy | Driver of Cart Across River (uncredited) |
| Sam Harris | General (uncredited) |
| D.R.O. Hatswell | Guppy (uncredited) |
| John Horan | Man at Railway Station (uncredited) |
| David Hughes | Police Constable (uncredited) |
| Billy Jones | Bugler (uncredited) |
| Tiny Jones | Nell - Maid (uncredited) |
| Colin Kenny | Pub Extra (uncredited) |
| Mae Marsh | Father Paul's Mother (uncredited) |
| Jim McVeigh | Man Following Cart Across River (uncredited) |
| Jim Morrin | Roof Thatcher (uncredited) |
| Al Murphy | Boxing Referee (uncredited) |
| Michael O'Brian | Musha Musha Man (uncredited) |
| Frank O'Connor | Ringside Photographer (uncredited) |
| Pat O'Malley | Man in Bar (uncredited) |
| Web Overlander | Hugh Bailey - Stationmaster (uncredited) |
| Bob Perry | Trooper Thorn's Ringside Trainer (uncredited) |
| Darla Ridgeway | Girl (uncredited) |
| Freddy Ridgeway | Boy (uncredited) |
| Jack Roper | Tony Gardello - Boxer (uncredited) |
| Philip Stainton | Anglican Bishop (uncredited) |
| Harry Tenbrook | Police Sergeant Hanan (uncredited) |
| Harry Tyler | Pat Cohan - Publican (uncredited) |
| Melinda Wayne | Girl on Wagon at Horse Race (uncredited) |
| Michael Wayne | Teenage Boy at Races (uncredited) |
| Patrick Wayne | Boy on Wagon at Horse Race (uncredited) |
| Toni Wayne | Teenage Girl at Races (uncredited) |
