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Dick Van Dyke as Claude R. Fitzwilliam |
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Barbara Feldon as Juliet Nowell |
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John McGiver as Albert |
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Edith Evans as Miss Victoria Woodworth |
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Harry Townes as Mr. Nowell |
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John Fiedler as Mr. Morton Dunne |
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Anne Seymour as Grimsby |
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Norman Fell as Oberblatz |
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Cecil Kellaway as Buckmaster |
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Stephen Strimpell as Byron Casey |
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Helen Kleeb as Mrs. Mortimer |
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Paul Reed as Prettikin |
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Albert Carrier as Pierre |
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Nelson Olmsted as Simmons |
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Dennis Cooney as Assistant D.A. Elliot Adams |
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Noam Pitlik as Charles |
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Anthony Eustrel as Garland |
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Sam Waterston as Oliver |
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Karen Norris as Kitty |
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Patience Cleveland as Dolly |
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Lew Brown as Frank |
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Monroe Arnold as Goldfarb |
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Robert Williams as Ryan |
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Laurence Naismith as Mr. Cotty (uncredited) |
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Barbara Morrison as Mrs. Mudge (uncredited) |
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Kenner G. Kemp as Bar Patron (uncredited) |
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Fletcher Allen as Reporter (uncredited) |
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Merie Earle as Elderly Shoplifter (uncredited) |
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John Alban as Customer (uncredited) |
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Ruth Foster as Customer (uncredited) |
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Meg Wyllie as Saleswoman (uncredited) |
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Arthur Peterson as Liquor Store Clerk (uncredited) |
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John Daheim as Man Who Gets Slapped (uncredited) |
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Gary Dubin as Kid (uncredited) |
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Ethelreda Leopold as Customer (uncredited) |
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Arthur Tovey as Bar Patron (uncredited) |
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Dick Cherney as Bar Patron (uncredited) |
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Paulene Myers as Oberblatz's secretary (uncredited) |
| Directing | Delbert Mann | Director |
| Writing | Isobel Lennart | Writer |
| Writing | Poyntz Tyler | Novel |
| Camera | Joseph F. Biroc | Director of Photography |
| Sound | John Williams | Original Music Composer |
| Editing | Ralph E. Winters | Editor |
| Production | Lynn Stalmaster | Casting |
| Production | Walter Mirisch | Producer |
| Costume & Make-Up | Donfeld | Costume Design |
| Production | Irving Temaner | Associate Producer |
| Production | Patrick J. Palmer | Unit Production Manager |
| Production | Allen K. Wood | Production Supervisor |
| Directing | Terence Nelson | Assistant Director |
| Art | Sam Gordon | Property Master |
| Art | William Kiney | Construction Coordinator |
| Crew | Norman Breedlove | Special Effects |
| Costume & Make-Up | Angela Alexander | Costumer |
| Costume & Make-Up | Wesley Jeffries | Costumer |
| Sound | Richard Carruth | Music Editor |
| Directing | Marie Kenney | Script Supervisor |
| Production | Larry DeWray | Production Assistant |
| Production | Jessie R. Ponitz | Producer's Assistant |
| Art | Robert F. Boyle | Art Direction |
| Art | Edward G. Boyle | Set Decoration |
| Costume & Make-Up | Alice Monte | Hairstylist |
| Costume & Make-Up | Thomas Tuttle | Makeup Artist |
| Sound | Robert Martin | Sound |
| Sound | Clem Portman | Sound Recordist |
| Sound | Robert A. Reich | Sound Editor |
| Camera | Arthur Gerstle | Assistant Camera |
