Raymond Burr Perry Mason Actor Barbara Hale Della Street Actor William Hopper Paul Drake Actor Ray Collins Lt. Arthur Tragg Actor Susanne Cramer Gerta Palmer Guest Star Jeanette Nolan Emma Ritter Guest Star Gregory Morton Wolfgang Stromm Guest Star Kevin Hagen Samuel Carleton Guest Star Ronald Long Franz Hoffer Guest Star Lilyan Chauvin Frau Zimmer Guest Star Wolfe Barzell Prof. Hans Ritter Guest Star Eileen Baral Elke Dietrich Guest Star Barbara Morrison Woman Magistrate Guest Star Horst Ebersberg German Border Guard Guest Star Hans Heyde Guard at Courtroom Guest Star Gail Patrick Jackson Executive Producer Ben Brady Producer Arthur Marks Director Jonathan Latimer Writer