**Otto Wernicke (1894-1965)** was a German actor, known primarily for his portrayal of Inspector Karl Lohmann in Fritz Lang's masterpieces, *M* (1931) and *The Testament of Dr. Mabuse* (1933).

A prolific character actor, Wernicke often distinguished himself in roles of authoritative figures such as policemen, commissioners, judges, or officials. His style was characterized by an imposing presence and robust acting, often with a hint of weariness or an innate gravity that lent authenticity to his characters.

Active from the silent film era until the 1950s, he participated in over 100 productions, solidifying his reputation as one of the most reliable performers of German cinema of that era, particularly for his iconic portrayal of "man of law" roles in complex situations.