 | Eddie Albert als The Fiction Writer |
 | Lionel Barrymore als Father Time (voice) |
 | Frank Baxter als Dr. Research (as Dr. Frank C. Baxter) |
 | Marvin Miller als Mr. Sun (voice) |
 | Sterling Holloway als Chloro Phyll (voice) |
| Frank Capra | Director |
| Frank Capra | Writer |
| William T. Hurtz | Director |
| Frank Capra | Producer |
| Harold E. Wellman | Director of Photography |
| Frank P. Keller | Editor |
| Arthur S. Black Jr. | Assistant Director |
| Wiard B. Ihnen | Set Designer |
| Paul Julian | Background Designer |
| Robert Dranko | Layout |
