The Beginning or the End (0)
| Type | Feature Film |
| MPAA Rating | NR |
| Runtime | 1hr 50mins. |
| Genres | Drama, Romance, War, Short Film |
| Status | Published |
| US Release Date | 11/30/-0001 |
| Name | Credit | Credited as | Season |
|---|---|---|---|
| Daniele Amfitheatrof | Composer (Music Score) | ||
| Warner Anderson | Actor | Capt. William S. Parsons, USN | |
| Irene Sharaff | Costume Designer | ||
| Frank Wead | Screenwriter | ||
| Nella Walker | Actor | Grace Tully | |
| Ludwig Stossel | Actor | Dr. Albert Einstein | |
| Norman Taurog | Director | ||
| Godfrey Tearle | Actor | Franklin D. Roosevelt | |
| Audrey Totter | Actor | Jean O'Leary | |
| Henry O'Neill | Actor | Gen. Thomas F. Farrell | |
| Barry Nelson | Actor | Col. Paul Tibbets, Jr. | |
| Moroni Olsen | Actor | Dr. Arthur H. Compton | |
| John Litel | Actor | K.T. Keller | |
| Norman Lloyd | Actor | Dr. Troyanski | |
| Ray June | Cinematographer | ||
| Jonathan Hale | Actor | Dr. Vannevar Bush | |
| Huntz Hall | Actor | Brehon Somervel | |
| Hurd Hatfield | Actor | Dr. John Wyatt | |
| Richard Haydn | Actor | Dr. Chisholm | |
| Victor Francen | Actor | Dr. Marre | |
| Cedric Gibbons | Art Director | ||
| Brian Donlevy | Actor | Maj.-Gen. Leslie R. Groves | |
| Tom Drake | Actor | Matt Cochran | |
| Edward Earle | Actor | Charles G. Ross | |
| Hume Cronyn | Actor | Dr. J. Robert Oppenheimer | |
| Jim Davis | Actor | Pilot at Tinian | |
| Joseph Calleia | Actor | Dr. Enrico Fermi | |
| Art Baker | Actor | Harry S. Truman | |
| Trevor Bardette | Actor | Clinic Doctor | |
| James Bush | Actor | Dr. Ernest O. Lawrence | |
| Jack Dawn | Makeup | ||
| Frank Ferguson | Actor | Dr. James B. Conant | |
| John Gallaudet | Actor | Dr. Leo Szilard | |
| John Hamilton | Actor | Dr. Harold C. Urey | |
| Paul Harvey | Actor | Lieutenant General W.D. Styer | |
| Robert Emmett Keane | Actor | Dr. Rand | |
| Damian O'Flynn | Actor | C.D. Howe | |
| Tom Stevenson | Actor | Dr. E.P. Winger | |
| Charles Trowbridge | Actor | Walter S. Carpenter Jr. | |
| Beverly Tyler | Actor | Ann Cochran | |
| Robert Walker | Actor | Col. Jeff Nixon | |
| Frank Wilcox | Actor | Dr. W.H. Zinn | |
| William Wright | Actor | Colonel John Lansdale | |
| George Boemler | Editor | ||
| Warren Newcombe | Cinematographer | ||
| Warren Newcombe | Special Effects | ||
| Hans Peters | Art Director | ||
| Larry Johns | Actor | Quaker Scientist | |
| Arnold A. Gillespie | Special Effects | ||
| George Hoemier | Editor | ||
| Edwin B. Willis | Set Designer | ||
| F. Keogh Gleason | Set Designer | ||
| Samuel Marx | Producer |
