Bette Davis as Baby Jane Hudson

Joan Crawford as Blanche Hudson

Victor Buono as Edwin Flagg

Wesley Addy as Marty McDonald

Julie Allred as Young Baby Jane Hudson

Anne Barton as Cora Hudson

Marjorie Bennett as Dehlia Flagg

Bert Freed as Ben Golden

Anna Lee as Mrs. Bates

Maidie Norman as Elvira Stitt

Dave Willock as Ray Hudson

William Aldrich as Lunch Counter Assistant at Beach

Ernest Anderson as Ernie

Russ Conway as Police Officer

Maxine Cooper as Bank Teller

Robert Cornthwaite as Dr. Shelby

Michael Fox as Man in Television Commercial

Gina Gillespie as Young Blanche Hudson

Barbara Merrill as Liza Bates

Don Ross as Police Officer

James Seay as Police Officer

John Shay as Police Officer

Jon Shepodd as Police Officer

Peter Virgo as Police Officer

Bobs Watson as Clerk in Newspaper Department

Debbie Burton as Singer (voice)

Murray Alper as Projectionist (uncredited)

Steve Condit as Boy in Audience (uncredited)

Dorothea Lord as Nurse (uncredited)

Norman Papson as Beach Boy (uncredited)

Mike Ragan as Police Officer (uncredited)

Sammy Shack as Theatre Patron (uncredited)

Michael St. Angel as Bank Manager (uncredited)

Jack Tornek as Man Buying Newspaper (uncredited)

Ralph Volkie as Assistant Projectionist (uncredited)

Robert Perry as Dancer (uncredited)

Bill Walker as Deliveryman (uncredited)

Ralph Hart as Small Boy (uncredited)