Edna Purviance
Mack Sennett and Hal Roach were two of the most famous producers of silent comedies. Famous actors and teams from this era are now legendary: Ben Turpin, Keystone Cops, Mabel Normand, Edna Purviance, Roscoe "Fatty" Arbuckle, Charlie Chaplin, Buster Keaton, Harold Lloyd, Larry Semon, Harry Langdon, Charley Chase, Laurel and Hardy (who made a commercially successful transition into talking pictures), along with many others.