 | Cary Grant als Jim Blandings |
 | Myrna Loy als Muriel Blandings |
 | Melvyn Douglas als Bill Cole |
 | Reginald Denny als Henry L. Simms |
 | Sharyn Moffett als Joan Blandings |
 | Connie Marshall als Betsy Blandings |
 | Louise Beavers als Gussie |
 | Ian Wolfe als Smith |
 | Harry Shannon als Tesander |
 | Tito Vuolo als Mr. Zucca |
 | Nestor Paiva als Joe Appollonio |
 | Jason Robards Sr. als John Retch |
 | Lurene Tuttle als Mary |
 | Lex Barker als Carpenter Foreman |
 | Emory Parnell als Mr. PeDelford |
 | Stanley Andrews als Mr. Murphy (uncredited) |
 | Robert Bray als Workman (uncredited) |
 | Don Brodie als Charlie - Painter (uncredited) |
 | Cliff Clark als Jones (uncredited) |
 | Kernan Cripps als Policeman (uncredited) |
 | Frank Darien als Judge Quarles (uncredited) |
 | Hal K. Dawson als Harry Selby (uncredited) |
 | Mike Lally als Hurried Diner (uncredited) |
| Gene Leslie als Taxi Driver (uncredited) |
 | Charles Middleton als Wrecker (uncredited) |
| Franklin Parker als Simpson (uncredited) |
| Ralph Stein als Proprietor (uncredited) |
 | Dan Tobin als Bunny Funkhauser (uncredited) |
 | Friedrich von Ledebur als Workman (uncredited) |
| Bud Wiser als Customer (uncredited) |
 | Will Wright als Eph Hackett (uncredited) |
| H. C. Potter | Director |
| Eric Hodgins | Novel |
| Norman Panama | Screenplay |
| Melvin Frank | Screenplay |
| Harry Marker | Editor |
| Melvin Frank | Producer |
| Norman Panama | Producer |
| Dore Schary | Executive Producer |
| Leigh Harline | Original Music Composer |
| James Wong Howe | Director of Photography |
| Carroll Clark | Art Direction |
| Albert S. D'Agostino | Art Direction |
| Harley Miller | Set Decoration |
| Darrell Silvera | Set Decoration |
| Robert Kalloch | Costume Design |
| Charles Burke | Camera Operator |
| James Lane | Assistant Director |
| Jim Kirley | Grip |
| Gaston Longet | Still Photographer |
| Gordon Bau | Makeup Supervisor |
| Hazel Rogers | Hairstylist |
| James H. Anderson | Production Manager |
| Joel Freeman | Assistant Director |
| Clem Portman | Sound |
| Francis M. Sarver | Sound |
| Russell A. Cully | Special Effects |
| Cliff Shirpser | Assistant Camera |
| C. Bakaleinikoff | Music Director |
| Kay Phillips | Script Supervisor |
| Dore Schary | Presenter |
| Charles Cirillo | Stand In |
