Chester Cooper Conklin was an early American film comedian who started at Keystone Studios as one of Mack Sennett’s Keystone Cops, often paired with Mack Swain. He appeared in a series of films with Mabel Normand and worked closely with Charlie Chaplin, both in silent and sound films.

Keystone Studios was an early film studio founded in Edendale, California on July 4, 1912 as the Keystone Pictures Studio by Mack Sennett with backing from actor-writer Adam Kessel (1866–1946) and Charles O. Baumann (1874–1931), owners of the New York Motion Picture Company. The company, referred to at its office as The Keystone Film Company, filmed in and around Glendale and Silver Lake, Los Angeles for several years, and its films were distributed by the Mutual Film Corporation between 1912 and 1915. The Keystone film brand declined rapidly after Sennett went independent in 1917.