If You Knew Susie (1948) — Cast
Cast
| Joe Sawyer | Zero Wolf |
| Earle Hodgins | Auctioneer |
| Margaret Kerry | Jennifer Parker |
| Dorothy Abbott | (uncredited) |
| Eddie Cantor | Sam |
| Bobby Driscoll | Junior |
| Douglas Fowley | Marty |
| Gail Davis | Gail |
| Dickie Humphreys | Handy |
| Phil Brown | Joe |
| Sig Ruman | Count Andre |
| Allyn Joslyn | Rafe Garrett |
| Don Beddoe | Editor |
| Dick Gordon | (uncredited) |
| Jason Robards Sr. | Ogleby |
| Sheldon Leonard | Garland Stanford |
| Claire Carleton | Vicki |
| Howard Freeman | Hancock |
| Mary Field | Power Operator |
| Frank Marlowe | Bennie |
| J. Farrell MacDonald | (uncredited) |
| Charles Halton | (uncredited) |
| Charles Dingle | Whitley |
| Fritz Feld | Chez Tempio |
| Isabel Randolph | Clinton |
| Harry Harvey | Sedley |
| Robert Clarke | (uncredited) |
| Addison Richards | Speech |
| George Chandler | (uncredited) |
| Joan Davis | Susie Bates |
| Mabel Paige | Grandma |
| Robert Bray | (uncredited) |
| Joe Devlin | (uncredited) |
| Sammy Stein | Willie |
Crew
| Fred Fleck | Production Manager |
| Darrell Silvera | Set Decoration |
| Eddie Cantor | Producer |
| Frank Redman | Director of Photography |
| Maxwell O. Henry | Assistant Director |
| Renié | Costume Design |
| James Altwies | Set Decoration |
| Ralph Berger | Art Direction |
| Annabell Levy | Hairstylist |
| Gordon Douglas | Director |
| Edgar Fairchild | Music |
| Philip Martin | Editor |
| Art Say | Still Photographer |
| Russell A. Cully | Special Effects |
| James Daly | Camera Operator |
| Albert S. D'Agostino | Art Direction |
| Warren Wilson | Screenplay |
| Oscar Brodney | Screenplay |