Karl Mantzius was born on February 20, 1860 in Copenhagen, Denmark. He was an actor and director, known for Penge (1916), Pavilionens hemmelighed (1916) and Addys Ægteskab (1916). He was married to Wanda Fride Augusta Mathiesen, Sara Beckett and Waleen, Soffy. He died on May 17, 1921 in Frederiksberg, Denmark.