German-born Henry Brandon was a character actor in American films, most often seen in villainous roles. His parents emigrated to the US shortly after his birth. His early interest in acting led him to study at the acclaimed Pasadena Community Playhouse.
Born in Poughkeepsie, New York, Louis Albert Denninger Jr. was the son of a garment manufacturer who relocated and set up shop in Los Angeles when Louis Jr. was 18 months old. After finishing school, Denninger enrolled at Woodbury Business College and majored in business and accounting, graduating cum laude with a master's in business administration.