| Katharine Hepburn | Susan Vance |
| Cary Grant | Dr. David Huxley |
| Charles Ruggles | Major Horace Applegate |
| May Robson | Aunt Elizabeth Random |
| Barry Fitzgerald | Mr. Gogarty |
| Walter Catlett | Constable Slocum |
| Fritz Feld | Dr. Fritz Lehman |
| Ward Bond | Motorcycle Cop at Jail (uncredited) |
A paleontologist loses a dinosaur bone to a dog whose heiress owner also has a pet leopard, called Baby.
|
|