Trailer
Images
 | Walter Pidgeon as Mr. Gruffydd |
 | Maureen O'Hara as Angharad Morgan |
 | Anna Lee as Bronwyn |
 | Donald Crisp as Gwilym Morgan |
 | Roddy McDowall as Huw Morgan |
 | John Loder as Ianto Morgan |
 | Sara Allgood as Beth Morgan |
 | Barry Fitzgerald as Cyfartha |
 | Patric Knowles as Ivor Morgan |
 | Morton Lowry as Mr. Jonas |
 | Arthur Shields as Mr. Parry |
 | Ann E. Todd as Ceinwen |
 | Frederick Worlock as Dr. Richards |
 | Richard Fraser as Davy Morgan |
 | Evan S. Evans as Gwilym Morgan Jr. |
 | James Monks as Owen Morgan |
 | Rhys Williams as Dai Bando |
| Lionel Pape as Evans |
 | Ethel Griffies as Mrs. Nicholas |
 | Marten Lamont as Iestyn Evans |
 | Irving Pichel as Adult Huw (Voice) |
| Jack Curtis as Villager (uncredited) |
 | Herbert Evans as Postman (uncredited) |
| Mary Field as Eve (uncredited) |
 | Jack Pennick as Mine Superintendent (uncredited) |
 | Robert B. Williams as Minor Role (uncredited) |
| Bobby Hale as VIllager (uncredited) |
| Directing | |
| John Ford | Director |
Writing | |
| Philip Dunne | Screenplay |
Sound | |
| Alfred Newman | Original Music Composer |
Editing | |
| James B. Clark | Editor |
Camera | |
| Arthur C. Miller | Director of Photography |
Production | |
| Darryl F. Zanuck | Producer |
Art | |
| Richard Day | Art Direction |
| Nathan Juran | Art Direction |
Writing | |
| Richard Llewellyn | Novel |
Art | |
| Thomas Little | Set Decoration |
Costume & Make-Up | |
| Gwen Wakeling | Costume Design |
Sound | |
| Eugene Grossman | Sound |
Costume & Make-Up | |
| Guy Pearce | Makeup Artist |
Sound | |
| Roger Heman Sr. | Sound |
Camera | |
| Paul Lockwood | Assistant Camera |
Directing | |
| Gene Bryant | Assistant Director |
Sound | |
| Hugo Friedhofer | Orchestrator |
Visual Effects | |
| Chesley Bonestell | Matte Painter |
Sound | |
| Edward B. Powell | Orchestrator |
Crew | |
| Cliff Lyons | Stunts |
Visual Effects | |
| Fred Sersen | Visual Effects |
Production | |
| Ray C. Moore | Location Manager |
Directing | |
| Edward O'Fearna | Assistant Director |
| Wingate Smith | Second Assistant Director |
Sound | |
| Tudor Williams | Music Arranger |
Camera | |
| Joseph LaShelle | Camera Operator |
Visual Effects | |
| W. Percy Day | Matte Painter |
Production | |
| William Koenig | Production Manager |
| Gene Bryant | Unit Production Manager |
Sound | |
| Edmund H. Hansen | Sound Engineer |
