Gertrude Welcker was a German stage and silent film actress. She appeared in 64 films between 1917 and 1925.
Gertrude Welcker
Dr. Mabuse the Gambler is the first film in the Dr. Mabuse series about the character Doctor Mabuse who featured in the novels of Norbert Jacques. It was directed by Fritz Lang and released in 1922. The film is silent and would be followed by the sound sequels The Testament of Dr. Mabuse (1933) and The Thousand Eyes of Dr. Mabuse (1960).
Theatrical release poster by Theo Matejko