Karl 'Muller' Mullen — Espionage Agent Character Profile

About Karl 'Muller' Mullen

The primary Nazi spy antagonist plotting to infiltrate vital American industrial centers to sabotage their capabilities before war breaks out. His plans are actively thwarted by Corvall and his wife.

Character Facts

Played by

Martin Kosleck

Appears in

Espionage Agent (1939)

Role

Supporting

More characters from Espionage Agent

• Barry Corvall (Joel McCrea)
• Brenda Ballard (Brenda Marshall)
• Lowell Warrington (Jeffrey Lynn)
• Mrs. Corvall (Nana Bryant)
• Dr. Helm (Hans Heinrich von Twardowski)
• Swiss Gendarme (uncredited) (George Davis)
• Decker (Lucien Prival)
• Instructor (Emmett Vogan)
• Secretary of State (Edwin Stanley)
• Mrs. O'Grady (Grace Hayle)
• Minor Role (Eddie Acuff)
• Dr. Anton Rader (James Stephenson)