June Allyson as Jo

Peter Lawford as Theodore "Laurie" Laurence

Margaret O'Brien as Beth

Elizabeth Taylor as Amy

Janet Leigh as Meg

Rossano Brazzi as Professor Bhaer

Mary Astor as Marmee

Lucile Watson as Aunt March

C. Aubrey Smith as Mr. Laurence

Elizabeth Patterson as Hannah

Leon Ames as Father March

Harry Davenport as Dr. Barnes

Richard Wyler as John Brooke

Connie Gilchrist as Mrs. Kirke

Ellen Corby as Sophie

Dorothy Abbott as Schoolgirl (uncredited)

Will Wright as Mr. Grace (uncredited)

Hal Bell as Party Guest (uncredited)

Marci Booth as Schoolgirl - Davis's Class (uncredited)

Harlan Briggs as Old Crony at Grace's Store (uncredited)

Rosalee Calvert as Schoolgirl - Davis's Class (uncredited)

Melinda Casey as Hummel Child (uncredited)

Frank Darien as Old Crony at Grace's Store (uncredited)

Lisa Golm as Mrs. Hummel (uncredited)

Eloise Hardt as Sally Gardiner (uncredited)

June Hedin as Schoolgirl - Davis's Class (uncredited)

Patsy Henry as Hummel Child (uncredited)

Olin Howland as Mr. Davis - Schoolteacher (uncredited)

Scotty Hugenberg as Hummel Child (uncredited)

Clare Jane Karnback as Tina (uncredited)

Gloria Moore as Schoolgirl - Davis's Class (uncredited)

Diane Nance as Kitty (uncredited)

Ralph Peters as Hackman (uncredited)

Norman Rainey as Servant (uncredited)

Isabel Randolph as Mrs. Gardiner (uncredited)

Marilyn Thorpe as Schoolgirl - Davis's Class (uncredited)

María Torres as Hummel Child (uncredited)

Stuart Torres as Hummel Child (uncredited)

Arthur Walsh as Lad Refused Dance by Jo (uncredited)