George Nader (October 19, 1921 – February 4, 2002) was an American actor and writer. He appeared in a variety of films from 1950 through 1974, including "Sins of Jezebel" (1953), "Congo Crossing" (1956), and "The Female Animal" (1958). During this period, he also did episodic television and starred in several series, including NBC's "The Man and the Challenge" (1959–60). In the 1960s he made several films in Germany, playing FBI agent Jerry Cotton. He is remembered for his first starring role, in the low-budget 3-D sci-fi film "Robot Monster" (1953), known as "one of the worst films ever made".