Gene Kelly 
 as Don Lockwood

Donald O'Connor 
 as Cosmo Brown

Debbie Reynolds 
 as Kathy Selden

Jean Hagen 
 as Lina Lamont

Millard Mitchell 
 as R.F. Simpson

Cyd Charisse 
 as Dancer

Douglas Fowley 
 as Roscoe Dexter

Rita Moreno 
 as Zelda Zanders

Mae Clarke 
 as Hairdresser (uncredited)

Bess Flowers 
 as Audience Member (uncredited)

Robert Foulk 
 as Matt - Policeman (uncredited)

Kathleen Freeman 
 as Phoebe Dinsmore (uncredited)

Joi Lansing 
 as Chorus Girl (uncredited)

Sylvia Lewis 
 as Female Tango Dancer (uncredited)

Harry 'Snub' Pollard 
 as Old Man Getting Umbrella in "Singin' in the Rain" Number (uncredited)

William Schallert 
 as Messenger on Screen (uncredited)

Elaine Stewart 
 as Lady-in-Waiting (uncredited)

Brick Sullivan 
 as Policeman in "Singin' in the Rain" Number (uncredited)

John George 
 as Audience Member (uncredited)

King Donovan 
 as Rod (uncredited)

Lana Turner 
 as Actress in 'The Royal Rascal' (uncredited)

Allen Sutherland 
 as Don as a Boy (uncredited)

Dawn Addams 
 as Teresa - a Lady-in-Waiting (uncredited)

John Albright 
 as Call Boy (uncredited)

Betty Van Allen 
 as Chorus Girl (uncredited)

Sue Allen 
 as Chorus Girl (uncredited)

Marie Ardell 
 as Chorus Girl (uncredited)

Bette Arlen 
 as 'Miss January' in 'Beautiful Girl' segment (uncredited)

David Bair 
 as Chorus Boy (uncredited)

Jimmy Bates 
 as Boy (uncredited)

Mary Bayless 
 as Audience Member (uncredited)

Marcella Becker 
 as Chorus Girl (uncredited)

Margaret Bert 
 as Wardrobe Woman (uncredited)

Madge Blake 
 as Dora Bailey (uncredited)

Lulu Mae Bohrman 
 as Audience Member (uncredited)

Gail Bonney 
 as Audience Member (uncredited)

Chet Brandenburg 
 as Film Crew Member (uncredited)

Tex Brodus 
 as Party Guest (uncredited)

Barbara Carroll 
 as 'Miss February' in 'Beautiful Girl' Segment (uncredited)

Gwen Carter 
 as Girl Talking with Cosmo at Party (uncredited)

Bill Chatham 
 as Chorus Boy (uncredited)

Lyle Clark 
 as Audience Member (uncredited)

Dorinda Clifton 
 as 'Miss August' in 'Beautiful Girl' segment (uncredited)

Harry Cody 
 as Audience Member (uncredited)

Chick Collins 
 as Fencer (uncredited)

Pat Conway 
 as Projectionist (uncredited)

Jeanne Coyne 
 as Chorus Girl (uncredited)

Ruby C. Currie 
 as Audience Member (uncredited)

Fred Datig Jr. 
 as Movie Usher (uncredited)

Bert Davidson 
 as Sound Engineer (uncredited)

Robert Dayo 
 as Chorus Boy (uncredited)

Gloria Dea 
 as Chorus Girl (uncredited)

Patricia Denise 
 as Chorus Girl (uncredited)

Harry Denny 
 as Party Guest (uncredited)

Kay Deslys 
 as Audience Member (uncredited)

John Dodsworth 
 as Baron de la Ma de la Toulon (uncredited)

Michael Dugan 
 as Audience Member (uncredited)

Phil Dunham 
 as Audience Member (uncredited)

Helen Eby-Rock 
 as Audience Member (uncredited)

Richard Emory 
 as Phil - Villain in Barroom Brawl (uncredited)

Betty Erbes 
 as Chorus Girl (uncredited)

Charles Evans 
 as Audience Member (uncredited)

Tommy Farrell 
 as Sid Phillips (uncredited)

Ernie Flatt 
 as Chorus Boy (uncredited)

George Ford 
 as Security Guard (uncredited)

Robert Fortier 
 as Gangster in Broadway Melody Ballet (uncredited)

Dan Foster 
 as Assistant Director (uncredited)

Clair Freeman 
 as Dancer (uncredited)

Lance Fuller 
 as Chorus Boy (uncredited)

Doris Fulton 
 as 'Miss October' in 'Beautiful Girl' Segment (uncredited)

Jeanne Gail 
 as Chorus Girl (uncredited)

Glen Gallagher 
 as Audience Member (uncredited)

Jon Gardner 
 as Kid (uncredited)

Diane Garrett 
 as Usherette (uncredited)

Jack George 
 as Orchestra Leader (uncredited)

Kenneth Gibson 
 as Party Guest (uncredited)

Mickey Golden 
 as Audience Member (uncredited)

Inez Gorman 
 as Mrs. Simpson (uncredited)

A. Cameron Grant 
 as Audience Member (uncredited)

Beatrice Gray 
 as Audience Member (uncredited)

Marion Gray 
 as Audience Member (uncredited)

Robert Haines 
 as Awards Ceremony Attendee (uncredited)

William Hamel 
 as Audience Member (uncredited)

Betty Hannon 
 as Chorus Girl (uncredited)

Sam Harris 
 as Audience Member (uncredited)

Jean Harrison 
 as 'Miss April' in 'Beautiful Girl' Segment (uncredited)

Timmy Hawkins 
 as Boy (uncredited)

Jack Hendricks 
 as Film Crew Member (uncredited)

Lars Hensen 
 as Minor Role (uncredited)

Jean Heremans 
 as Fencer (uncredited)

Stuart Holmes 
 as J. Cumberland Spendrill III (uncredited)

Don Hulbert 
 as Chorus Boy (uncredited)

Frank Hyers 
 as Audience Member (uncredited)

Patricia Jackson 
 as Chorus Girl (uncredited)

Ivor James 
 as Chorus Boy (uncredited)

Morgan Jones 
 as Audience Member (uncredited)

David Kasday 
 as Kid (uncredited)

Jan Kayne 
 as Usherette (uncredited)

Jimmy Kelly 
 as Chorus Boy (uncredited)

Kenner G. Kemp 
 as Police Escort at Premiere (uncredited)

Mike Lally 
 as Audience Member (uncredited)

Judy Landon 
 as Olga Mara (uncredited)

Joi Lansing 
 as 'Miss November' in 'Beautiful Girl' segment (uncredited)

Janet Lavis 
 as Chorus Girl (uncredited)

Virginia Lee 
 as Chorus Girl (uncredited)

Meredith Leeds 
 as 'Miss December' in 'Beautiful Girl' Segment (uncredited)

William F. Leicester 
 as Audience Member (uncredited)

Peggy Leon 
 as Audience Member (uncredited)

Diki Lerner 
 as Male Tango Dancer (uncredited)

Bill Lewin 
 as Bert - Cowboy Knocked Out in Barroom Brawl (uncredited)

King Lockwood 
 as Assistant Cameraman (uncredited)

Leon Lontoc 
 as Filipino Butler (uncredited)

Leota Lorraine 
 as Film Crew Member (uncredited)

Paul Maxey 
 as Dancing Fat Man at Party (uncredited)

Dorothy McCarty 
 as Chorus Girl (uncredited)

Ann McCrea 
 as Chorus Girl (uncredited)

Philo McCullough 
 as Audience Member (uncredited)

Ray McDonald 
 as Dancer (uncredited)

Johnny McGovern 
 as Boy (uncredited)

Joseph Mell 
 as Projectionist (uncredited)

Carl Milletaire 
 as Villain (uncredited)

Gloria Moore 
 as Chorus Girl (uncredited)

Forbes Murray 
 as Club Patron (uncredited)

Peggy Murray 
 as Chorus Girl (uncredited)

Anne Neyland 
 as Chorus Girl (uncredited)

Ruth Packard 
 as Audience Member (uncredited)

Dorothy Patrick 
 as Usherette (uncredited)

Allen Pinson 
 as Fencer (uncredited)

Angi O. Poulos 
 as Fruit Peddler (uncredited)

George Reeder 
 as Dancer (uncredited)

Charles Regan 
 as Saloon Keeper (uncredited)

Shirley Jean Rickert 
 as Chorus Girl (uncredited)

Joanne Rio 
 as Chorus Girl (uncredited)

Tony Rocke 
 as Man in Forecourt (uncredited)

Victor Romito 
 as Audience Member (uncredited)

Dennis Ross 
 as Cosmo as a Boy (uncredited)

Paul Salata 
 as Chorus Boy (uncredited)

Cosmo Sardo 
 as Party Guest (uncredited)

Phil Schumacher 
 as Audience Member (uncredited)

Betty Scott 
 as Chorus Girl (uncredited)

David Sharpe 
 as Fencer (uncredited)

Julius Tannen 
 as Man in Talking Pictures Demonstration (uncredited)

Harry Tenbrook 
 as Sound Technician (uncredited)

Beverly Thomas 
 as 'Miss March' in 'Beautiful Girl' Segment (uncredited)

Beverly Thompson 
 as 'Miss June' in 'Beautiful Girl' Segment (uncredited)

Dee Turnell 
 as 'Miss July' in 'Beautiful Girl' segment (uncredited)

Dorothy Tuttle 
 as Dancer (uncredited)

Tyra Vaughn 
 as Chorus Girl (uncredited)

Pat Walker 
 as 'Miss September' in 'Beautiful Girl' Segment (uncredited)

Tommy Walker 
 as Chorus Boy (uncredited)

Bobby Watson 
 as Diction Coach (uncredited)

Chalky Williams 
 as Awards Ceremony Attendee (uncredited)

Robert B. Williams 
 as Policeman (uncredited)

Wilson Wood 
 as Rudy Vallee Impersonator (uncredited)

Adam York 
 as Publicity Man (uncredited)

Norma Zimmer 
 as Chorus Girl (uncredited)

Finn Zirzow 
 as Awards Ceremony Attendee (uncredited)

Jimmy Thompson 
 as Singer in ‘Beautiful Girl’ Segment (uncredited)