Trailer
Images
 | Jim Bannon as Jack Packard |
 | Anita Louise as Janet Mitchell |
 | Michael Duane as Rex Kennedy |
 | Barton Yarborough as Doc Long |
 | Paul E. Burns as Leon Hartman |
 | Thomas E. Jackson as Det. Capt. Quinn |
 | Mona Barrie as Louise Mitchell |
 | Frank Wilcox as Prof. Arthur Logan |
 | Richard Hale as Curator Raymond Halliday |
 | Ludwig Donath as Dr. Karger |
 | Mary Newton as Nurse |
 | Edward Earle as E. R. Willard |
 | Fred Godoy as Senor Mendoza |
 | John Elliott as John, butler |
 | Frank Mayo as Quentin Mitchell |
| Frank Martin as Introductory Narrator (voice) |
 | Coulter Irwin as Frank, Willard's aide |
| Bud Averill as Closing-Time Museum Guard |
 | Harry Strang as Brophy, museum watchman |
| Camera | |
| Henry Freulich | Director of Photography |
Directing | |
| Henry Levin | Director |
Writing | |
| Charles O'Neal | Screenplay |
Crew | |
| Dwight V. Babcock | Additional Dialogue |
| Carlton E. Morse | Radio Play |
Directing | |
| Carl Hiecke | Assistant Director |
Sound | |
| Mischa Bakaleinikoff | Music Director |
Art | |
| George Montgomery | Set Decoration |
Editing | |
| Jerome Thoms | Editor |
Art | |
| Robert Peterson | Art Direction |
