Frank Gilbreth

Clifton Webb

Mrs. Lillian Gilbreth

Myrna Loy

Ann Gilbreth

Jeanne Crain

Deborah Lancaster

Betty Lynn

Ernestine Gilbreth

Barbara Bates

Dr. Burton

Edgar Buchanan

Mrs. Mebane

Mildred Natwick

Mrs. Monahan

Sara Allgood

Mary Gilbreth (uncredited)

Betty Barker

Teacher

Lovyss Bradley

Fred Gilbreth

Anthony Sydes

Martha Gilbreth (uncredited)

Patti Brady

Jack Gilbreth

Roddy McCaskill

Dan Gilbreth (uncredited)

Teddy Driver

Frank Gilbreth Jr.

Norman Ollestad

Lillie Gilbreth

Carol Nugent

William Gilbreth (uncredited)

Jimmy Hunt

Mrs. Benson

Virginia Brissac

School Principal

Evelyn Varden

Higgins (uncredited)

Frank Orth

Jim Bracken (uncredited)

Walter Baldwin

Jim Bracken

Walter S. Baldwin

Joe Scales (uncredited)

Benny Bartlett

Tom Black

Craig Hill

Girl on Beach (uncredited)

Lyn Thomas

Joe Scales

Bennie Bartlett

Music Teacher (uncredited)

Mary Field

Plumber

Syd Saylor

Mailman

Ken Christy

Teacher (uncredited)

Eula Guy

Teacher (uncredited)

Caryl Lincoln

(uncredited)

Jeff Richards

Robert Arthur

Messenger

Billy Engle

Mailman with Special Delivery Letter

Vincent Graeff