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Joel McCrea as William Thomas Green Morton |
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Betty Field as Elizabeth Morton |
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Harry Carey as Professor John C. Warren |
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William Demarest as Eben Frost |
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Louis Jean Heydt as Dr. Horace Wells |
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Julius Tannen as Dr. Charles T. Jackson |
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Edwin Maxwell as Vice-President of Medical Society |
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Porter Hall as President Franklin Pierce |
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Franklin Pangborn as Dr. Heywood |
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Grady Sutton as Homer Quimby |
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Donivee Lee as Betty Morton |
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Harry Hayden as Judge Shipman |
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Torben Meyer as Dr. Dahlmeyer |
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Victor Potel as First Dental Patient |
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Thurston Hall as Senator Borland |
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J. Farrell MacDonald as The Priest |
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Roscoe Ates as Morton's Sign Painter - replaced by Hank Worden (uncredited) |
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Hank Bell as Onlooker (uncredited) |
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Franklyn Farnum as Massachusetts Medical Society Man (uncredited) |
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Byron Foulger as Morton's Clinic Manager (uncredited) |
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Hank Worden as Morton's Sign Painter - replaced Roscoe Ates (uncredited) |
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Arthur Hoyt as Presidential Secretary (uncredited) |
| Directing | Preston Sturges | Director |
| Writing | Preston Sturges | Screenplay |
| Writing | René Fülöp-Miller | Writer |
| Production | Buddy G. DeSylva | Executive Producer |
| Sound | Victor Young | Original Music Composer |
| Editing | Stuart Gilmore | Editor |
| Art | Hans Dreier | Art Direction |
| Art | Ernst Fegté | Art Direction |
| Art | Stephen Seymour | Set Decoration |
| Costume & Make-Up | Edith Head | Costume Design |
| Costume & Make-Up | Wally Westmore | Makeup Artist |
| Camera | Victor Milner | Director of Photography |
