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