Jeanne Crain as Ann Gilbreth

Myrna Loy as Lillian Gilbreth

Debra Paget as Martha Gilbreth

Jeffrey Hunter as Bob Grayson

Edward Arnold as Sam Harper

Hoagy Carmichael as Tom Bracken

Barbara Bates as Ernestine Gilbreth

Robert Arthur as Frank Gilbreth

Verna Felton as Cousin Leora

Teddy Driver as Jack Gilbreth (uncredited)

Tommy Ivo as William Gilbreth (uncredited)

Jimmy Hunt as Fred Gilbreth (uncredited)

Anthony Sydes as Dan Gilbreth (uncredited)

June Hedin as Jane Gilbreth (uncredited)

Tina Thompson as Young Jane Gilbreth (uncredited)

Carol Nugent as Lily Gilbreth (uncredited)

Martin Milner as Al Lynch (uncredited)

Clay Randolph as Morton Dykes (uncredited)

Robert Easton as Franklin Dykes (uncredited)

Cecil Weston as Emily (uncredited)

Lori Lanegger as Susan Whitaker (uncredited)

Willis Bouchey as Kendall Williams (uncredited)

Jack Larson as Packy Talbot (uncredited)

Clifton Webb as Frank Gilbreth (uncredited)

Robert Adler as Harper's Chauffeur (uncredited)

William Forrest as Col. Putnam (uncredited)

Everett Glass as Faculty Member (uncredited)

Maudie Prickett as Lady with Fan (uncredited)

Dick Rich as Bit Role (uncredited)

Mario Siletti as Albert - the Barber (uncredited)

Benny Bartlett as 'Bubber' Beasley (uncredited)

Al Thompson as Porter (uncredited)

Michael Ross as Club Doorman (uncredited)