**Robert Lewis (1909–1997)** was primarily an influential theater director, educator, and co-founder of the Actors Studio in New York City. Although his career focused primarily on directing and teaching, Lewis had some minor acting experience in film, often in supporting or uncredited roles, especially early in his career.

He is not known for playing prominent roles in major films, nor for a distinctive acting style on the big screen, given the limited number and nature of his appearances. His legacy lies rather in his profound impact on acting training and American theater, not in his work as a prominent film actor.