S01E24: The Case of the Deadly Double

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.

Season 1

Raymond Burr
Raymond Burr
Perry Mason
Barbara Hale
Barbara Hale
Della Street
William Hopper
William Hopper
Paul Drake
William Talman
William Talman
Hamilton Burger
Ray Collins
Ray Collins
Lieutenant Tragg