His first film was Citizen Kane (1941), which he co-wrote, produced, directed and starred in as the title character, Charles Foster Kane.- Orson Welles (Wikipedia)
George Orson Welles (May 6, 1915 – October 10, 1985) was an American director, actor, writer, and producer who is remembered for his innovative work in film, radio, and theatre. He is considered to be among the greatest and most influential filmmakers of all time.