Thelma Alice Todd (July 29, 1906 – December 16, 1935) was an American actress. Appearing in about 120 pictures between 1926 and 1935, she is best remembered for her comedic roles in films such as Marx Brothers' Monkey Business and Horse Feathers, a number of Charley Chase's short comedies, and co-starring with Buster Keaton and Jimmy Durante in Speak Easily. She also had roles in Wheeler and Woolsey farces, several Laurel and Hardy films, the last of which (The Bohemian Girl) featured her in a part that was truncated by her death.