Joanne Woodward as Eve White / Eve Black / Jane

David Wayne as Ralph White

Lee J. Cobb as Doctor Curtis Luther

Edwin Jerome as Doctor Francis Day

Alena Murray as Secretary

Nancy Kulp as Mrs. Black

Douglas Spencer as Mr. Black

Terry Ann Ross as Bonnie White

Ken Scott as Earl

Mimi Gibson as Eve (as a child)

Alistair Cooke as Himself (prologue narrator)

Mary Field as Effie, sales clerk

Vince Edwards as Army Sergeant (uncredited)

Mary Field as Effie Blanford (uncredited)

Richard Garrick as Mr. Fox (uncredited)

Helene Hatch as Landlady (uncredited)

Jimmie Horan as Man at Funeral (uncredited)

Catherine Howard as Switchboard Operator (uncredited)

Jason Johnson as Boy (uncredited)

Dick Johnstone as Man at Funeral (uncredited)

Frank Marlowe as Hotel Clerk (uncredited)

Wanda Perry as Nurse (uncredited)

Joe Rudán as Sailor (uncredited)

Gary Spencer as Bartender (uncredited)

Al Thompson as Man at Funeral (uncredited)

Rush Williams as Leonard - Hospital Orderly (uncredited)