Perry Mason Season 1
S01E24 The Case of the Deadly Double
First Aired: March 1, 1958
When Robert Crane is charged with the murder of his sister's estranged husband Perry needs the testimony of sister Helen Reed to clear him of the charge. Unfortunately for all concerned, Helen suffers from multiple personality disorder and the second personality, Joyce Martel, is the one who is needed as the witness. Helen's psychiatrist puts her under hypnosis so Joyce can tell what she knows about the case.
Cast: Raymond Burr (Perry Mason), Barbara Hale (Della Street), William Hopper (Paul Drake), William Talman (Hamilton Burger), Ray Collins (Lieutenant ArthurTragg)
Guests: Paul Langton (Harry Vance), Constance Ford (Helen Reed/Joyce Martel), Abraham Sofaer (Dr. Maitland), Pierre Watkin (Judge), Carleton Young (David Reed), Carole Mathews (Cora Dunbar), George E. Stone (George), Carlyle Mitchell (Dr. Desmond), Murray Hamilton (John Davis Hale), Denver Pyle (Robert Crane), Clark Howat (Sgt. Grant)