Otto Kruger was an American actor who began his career in 1915. His career was most prolific during the 1930s and 1940s.
The grandnephew of South African pioneer and president Paul Kruger, Otto Kruger was musically trained, but switched careers and went into acting. Making his Broadway debut at the age of fifteen, Kruger quickly became a matinee idol. Though he started to get noticed in the early 1920s, it was the 1930s when his career was at its height, including an appearance in the 1934 film Chained, opposite Joan Crawford and Clark Gable. Though he played the hero on occasion, for most of his career, he played the main villain or a charming or corrupt businessman. One of his best known roles was in the 1954 film Magnificent Obsession.
Among his television appearances was a 1959 role as Dr. Mumford in the episode "Experiments in Terror" on the NBC science fiction/adventure series The Man and the Challenge. In 1961, he appeared as Franklyn Malleson Ghentin in "A Fool for a Client" on James Whitmore's The Law and Mr. Jones on ABC. He retired in the 1960s.