 Jeanne CrainAnn Gilbreth | Ann Gilbreth |
 Myrna LoyLillian Gilbreth | Lillian Gilbreth |
 Debra PagetMartha Gilbreth | Martha Gilbreth |
 Jeffrey HunterBob Grayson | Bob Grayson |
 Edward ArnoldSam Harper | Sam Harper |
 Hoagy CarmichaelTom Bracken | Tom Bracken |
 Barbara BatesErnestine Gilbreth | Ernestine Gilbreth |
 Robert ArthurFrank Gilbreth | Frank Gilbreth |
 Verna FeltonCousin Leora | Cousin Leora |
| TTeddy DriverJack Gilbreth (uncredited) | Jack Gilbreth (uncredited) |
 Tommy IvoWilliam Gilbreth (uncredited) | William Gilbreth (uncredited) |
 Jimmy HuntFred Gilbreth (uncredited) | Fred Gilbreth (uncredited) |
| AAnthony SydesDan Gilbreth (uncredited) | Dan Gilbreth (uncredited) |
| JJune HedinJane Gilbreth (uncredited) | Jane Gilbreth (uncredited) |
| TTina ThompsonYoung Jane Gilbreth (uncredited) | Young Jane Gilbreth (uncredited) |
 Carol NugentLily Gilbreth (uncredited) | Lily Gilbreth (uncredited) |
 Martin MilnerAl Lynch (uncredited) | Al Lynch (uncredited) |
| CClay RandolphMorton Dykes (uncredited) | Morton Dykes (uncredited) |
 Robert EastonFranklin Dykes (uncredited) | Franklin Dykes (uncredited) |
| CCecil WestonEmily (uncredited) | Emily (uncredited) |
| LLori LaneggerSusan Whitaker (uncredited) | Susan Whitaker (uncredited) |
 Willis BoucheyKendall Williams (uncredited) | Kendall Williams (uncredited) |
 Jack LarsonPacky Talbot (uncredited) | Packy Talbot (uncredited) |
 Clifton WebbFrank Gilbreth (uncredited) | Frank Gilbreth (uncredited) |
 Robert AdlerHarper's Chauffeur (uncredited) | Harper's Chauffeur (uncredited) |
 William ForrestCol. Putnam (uncredited) | Col. Putnam (uncredited) |
 Everett GlassFaculty Member (uncredited) | Faculty Member (uncredited) |
 Maudie PrickettLady with Fan (uncredited) | Lady with Fan (uncredited) |
 Dick RichBit Role (uncredited) | Bit Role (uncredited) |
| MMario SilettiAlbert - the Barber (uncredited) | Albert - the Barber (uncredited) |
