Thelma Todd (July 29, 1905 – December 16, 1935) was a popular American actress of the late 1920s and early 1930s film. Appearing in over 40 pictures between 1926 and 1935, she is best remembered for her comedic roles in films like Marx Brothers' Monkey Business and Horse Feathers, and co-starring with Buster Keaton and Jimmy Durante in Speak Easily. She also had roles in Laurel and Hardy's Another Fine Mess, The Devil's Brother (aka Fra Diavolo), and Chickens Come Home, and appeared briefly in The Bohemian Girl playing a part that was suddenly truncated by her mysterious early death.

Thelma Todd was born on July 29, 1905, in Lawrence, Massachusetts, an industrial city near the New Hampshire state line. She was a lovely child with good academic tendencies, so much so that she decided early on to become a schoolteacher. After high school she went on to college, but at her mother's insistence entered several beauty contests (apparently her mother wanted her to be more than just a "schoolmarm"). Thelma was so successful in these endeavors that she entered on the state level and won the title of "Miss Massachusetts" in 1925 and went on to the "Miss America" pageant. Although she didn't win, the pageant afforded her a chance to be seen been by talent scouts looking for fresh new faces to showcase in films. She began appearing in one- and two-reel shorts, mostly comedy, which showcased her keen comic timing and aptitude for physical comedy (unusual in such a beautiful woman). She had been making shorts for Hal Roach when she was signed to Paramount Pictures. Her first film - at 21 years of age - was as Lorraine Lane in 1927's Fascinating Youth (1926), a romantic comedy, which was Paramount's showcase vehicle for its new stars. Thelma received minor billing in another film that year, God Gave Me Twenty Cents (1926). The next year she starred with Gary Cooper (I) and William Powell (I) in the western Nevada (1927). That year also saw her in three more films, with Gay Defender, The (1927) being the most notable. It starred Richard Dix (I) in the role of a man falsely accused of murder. As the 1920s closed, Thelma began getting parts in more and more films. In 1928 and 1929 alone she was featured in 20 pictures, and not just comedies--she also did dramas and gothic and horror films. Unlike many silent-era stars whose voices didn't fit their image or screen persona, Thelma's did. She had a bright, breezy, clear voice with a pleasant trace of a somewhat aristocratic, but not snobbish, New England accent, and easily made the transition to sound films. In 1930 she added 14 more pictures to her resume, with Dollar Dizzy (1930) and Follow Thru (1930) being the most notable. The latter was a musical with Thelma playing a rival to Nancy Carroll (I) for the affections of Buddy Rogers. It was a box-office hit, as was the stage production on which it was based. The following year Thelma appeared in 14 more films, among them Let's Do Things (1931), Speak Easily (1932), Old Bull, The (1932) and On the Loose (1931). Her most successful film that year, however, was the Marx Brothers farce Monkey Business (1931). While critics gave the film mixed reviews, the public loved it. In 1932 Thelma appeared in another Marx Brothers film directed by Norman Z. McLeod, Horse Feathers (1932). She also starred in This Is the Night (1932), a profitable film which featured Cary Grant in his first major role. In 1934 Thelma made 16 features, but her career would soon soon come to a grinding halt. In 1935 she appeared in such films as Twin Triplets (1935) and Misses Stooge, The (1935), all showcasing her considerable comic talents. She also proved to be a savvy businesswoman with the opening of "Thelma Todd's Sidewalk Cafe", a nightclub/restaurant that catered to show business people. It also, unfortunately, attracted some shady underworld types as well, and there were rumors that they were trying to take over her club and use it as a gambling establishment in order to fleece the wealthy Hollywood crowd. According to these stories, Thelma and her boyfriend, director Roland West, wouldn't sell their establishment once they found out what the gangsters had in mind, thereby incurring the enmity of people it was not a good idea to become enemies of. Whether the stories were true or not, on December 16, 1935, Thelma was found dead in her car, in her garage, in Los Angeles. Her death was ruled a suicide due to carbon monoxide poisoning. She was only 30 years old. At the time, as today, many felt that her death was actually a murder connected to the goings-on at her club, a theory that was lent credence by the fact that no one who knew her had ever seen her depressed or morose enough to the point of being worried about her committing suicide. Another factor that aroused suspicion was that her death was given a cursory investigation by the - at the time - notoriously corrupt Los Angeles County District Attorney's Office and the case was quickly and unceremoniously closed. Her death has remained a controversial one even to this day. Three films she made before her death weren't released until the following year: Hot Money (1936), All-American Toothache (1936), and Bohemian Girl, The (1936). The latter saw her quite substantial role cut down so much that she was barely glimpsed in the picture. Thelma had made an amazing 115 films in such a short career, and her beauty and talent would no doubt have taken her right to the top if it hadn't been for her untimely demise.

A one-time teacher and beauty queen, Thelma went to Hollywood in the late 1920s and soon became one of the premier comediennes of her day, with many appearances in comedy shorts (with Zasu Pitts, Patsy Kelly, Stan Laurel and Oliver Hardy, and others), and also feature-length movies. In the 1930s, she began to turn more attention to running a restaurant, "Thelma Todd's Sidewalk Cafe." Many thought her 1935 death to be murder and there was no shortage of suspects, but subsequent investigations by the DA's Office and a grand jury failed to find an answer that satisfied. 16 December 1935, carbon monoxide poisoning