| Jean Arthur | Mary Smith |
| Edward Arnold | J.B. Ball |
| Ray Milland | John Ball Jr. |
| Luis Alberni | Mr. Louis Louis |
| Mary Nash | Mrs. Jenny Ball |
| Franklin Pangborn | Van Buren |
| Barlowe Borland | Mr. Gurney |
| William Demarest | Wallace Whistling |
| Andrew Tombes | E.J. Hulgar |
| Esther Dale | Lillian |
| Harlan Briggs | Office Manager |
| William B. Davidson | Mr. Hyde |
| Nora Cecil | Miss Swerf |
| Robert Greig | Butler |
| Stanley Andrews | Police Captain Jackson (uncredited) |
| Gertrude Astor | Saleswoman (uncredited) |
| Richard Barbee | Third Partner (uncredited) |
| Benny Bartlett | Newsboy (uncredited) |
| Wilson Benge | Neighboring Butler (uncredited) |
| Lee Bowman | Motorcycle Policeman (uncredited) |
| Sidney Bracey | Hornsby - Mary's Chauffeur (uncredited) |
| Don Brodie | Automobile Salesman (uncredited) |
| Ethel Clayton | Undetermined Role (uncredited) |
| Dora Clement | Saleslady (uncredited) |
| Lois Clinton | Brunette Woman (uncredited) |
| Elsa Connor | Undetermined Role (uncredited) |
| George Cowl | Bank President (uncredited) |
| Virginia Dabney | Blonde Woman (uncredited) |
| Hal K. Dawson | Jeweler (uncredited) |
| Vernon Dent | First Partner (uncredited) |
| John Dilson | Nervous Hotel Registrant (uncredited) |
| Florence Dudley | Cashier (uncredited) |
| Harold Entwistle | Elevator Man (uncredited) |
| Amelia Falleur | Housemaid (uncredited) |
| Jesse Graves | Graves - J.B. Ball's Porter (uncredited) |
| Hal Greene | Bellhop (uncredited) |
| Robert Homans | Private Guard (uncredited) |
| Arthur Hoyt | Jeweler (uncredited) |
| Marsha Hunt | Girl Getting Coat Dropped on Her at Finale (uncredited) |
| Helen Huntington | Stenographer (uncredited) |
| Olaf Hytten | Houseman (uncredited) |
| Adia Kuznetzoff | Bum (uncredited) |
| Kathleen Hope Lewis | Stenographer (uncredited) |
| Nick Lukats | Bum in Automat (uncredited) |
| John Marshall | Osric (uncredited) |
| Lu Miller | Housemaid (uncredited) |
| Rex Moore | Elevator Boy (uncredited) |
| Frances Morris | Assistant Secretary (uncredited) |
| Bob Murphy | Automat Detective (uncredited) |
| Forbes Murray | Husband (uncredited) |
| Dennis O'Keefe | Office Manager (uncredited) |
| Lee Phelps | Hotel Detective (uncredited) |
| John Picorri | Ernest (uncredited) |
| Kate Price | Laundress (uncredited) |
| Jack Raymond | Bum (uncredited) |
| Jack Rice | Man in Ball's Outer Office (uncredited) |
| Hector Sarno | Armenian Rug Salesman (uncredited) |
| Francis Sayles | Martin - Houseman (uncredited) |
| Leonid Snegoff | Chef (uncredited) |
| Edwin Stanley | Second Partner (uncredited) |
| Hayden Stevenson | Chauffeur (uncredited) |
| Bernard Suss | Man in Automat (uncredited) |
| Laura Treadwell | Wife (uncredited) |
| William Wagner | J.B. Ball's Valet (uncredited) |
| Gloria Williams | Undetermined Role (uncredited) |
| Florence Wix | Woman in Hat Shop (uncredited) |
| Harry Worth | Hindu Man on Bus (uncredited) |
