 Glenn FordElliott Nash | Elliott Nash |
 Debbie ReynoldsNell Nash | Nell Nash |
 Carl ReinerHarlow Edison | Harlow Edison |
 John McGiverSam Thorpe | Sam Thorpe |
 Mabel AlbertsonMrs. Chandler | Mrs. Chandler |
 Doro MerandeMatilda | Matilda |
 Bert FreedJoe Jenkins | Joe Jenkins |
 Martin LandauThe Duke | The Duke |
 Robert EllensteinBen | Ben |
 Dick WesselLouis | Louis |
 Helen KleebMiss Spence (uncredited) | Miss Spence (uncredited) |
 Jon LormerDr. Weiner (uncredited) | Dr. Weiner (uncredited) |
 James GavinSergeant Drucker (uncredited) | Sergeant Drucker (uncredited) |
 Stanley AdamsDan Shelby (voice) (uncredited) | Dan Shelby (voice) (uncredited) |
 Don AndersonTV Technician in Booth (uncredited) | TV Technician in Booth (uncredited) |
 Gene CooganMan (uncredited) | Man (uncredited) |
| MMichael DuganEngineer #1 (uncredited) | Engineer #1 (uncredited) |
| MMeurisse DureeDancer (uncredited) | Dancer (uncredited) |
 Franklyn FarnumTV Technician in Booth (uncredited) | TV Technician in Booth (uncredited) |
 Jack KruschenTaxi Driver (uncredited) | Taxi Driver (uncredited) |
 Rex LeaseStage Manager (uncredited) | Stage Manager (uncredited) |
| CCarey LeveretteDancer (uncredited) | Dancer (uncredited) |
| OOwen McGiveneyStage Doorman (uncredited) | Stage Doorman (uncredited) |
 Frank MitchellMr. Olson (uncredited) | Mr. Olson (uncredited) |
| RRay PourchotPolice Officer (uncredited) | Police Officer (uncredited) |
 William SmithActor Tripping Over Camera (uncredited) | Actor Tripping Over Camera (uncredited) |
 Guy StockwellActor (voice) (uncredited) | Actor (voice) (uncredited) |
| HHarlan WardeDr. Bradley (uncredited) | Dr. Bradley (uncredited) |
