Wallis H. Clark (2 March 1882 – 14 February 1961) was a stage and film actor, born in Essex, England, UK. He died in North Hollywood, California, USA.
Prior to acting, Clark was an engineer. He began his stage career in Margate, Kent, in 1908. He moved to America two years later and acted in many plays before transitioning to the screen in 1932.
Along with actors Franklyn Farnum and Bess Flowers, Clark holds the record for the most appearances in films that have won the Academy Award for Best Picture. He appeared in supporting roles in 136 films between 1931 and 1954. Five of these films won Best Picture: It Happened One Night (1934), Mutiny on the Bounty (1935), The Great Ziegfeld (1936), You Can't Take It with You (1938), and Gone with the Wind (1939). In four of these five films, Clark was uncredited. In Mutiny on the Bounty, he is credited in the role of Morrison.