Mack Sennett was a Canadian-American producer, director, actor, and studio head who was known as the "King of Comedy" during his career.
The Moving Picture World, 1916
The Mack Sennett Keystone Studios in 1915
Movie theatre audience members Roscoe Arbuckle and Sennett square off while watching Mabel Normand onscreen in Mabel's Dramatic Career (1913).
The Keystone Cops are fictional, humorously incompetent policemen featured in silent film slapstick comedies produced by Mack Sennett for his Keystone Film Company between 1912 and 1917.
Mack Sennett
…first fully enclosed film stage, and Sennett became famous as the originator of slapstick routines such as pie-throwing and car-chases, as seen in the Keystone Cops films. He also produced short features that displayed his Bathing Beauties, many of whom had acting careers. After struggling with bankruptcy and the…
The Keystone Cops in The Stolen Purse (1913). Pictured (left to right): Robert Z. Leonard, Mack Sennett, Bill Haber, Henry Lehrman, ⸻ McAlley, Chester Franklin, Ford Sterling, Fred Mace, and Arthur Tavares
The Keystone Cops in a typical pose from In the Clutches of the Gang (1914). The chief (using the telephone) is Ford Sterling. The policeman directly behind Sterling (extreme background, left) is Edgar Kennedy. The young cop to Kennedy's left is a then-unknown William Frawley. The hefty policeman at extreme right is Fatty Arbuckle. The young constable with bulging eyes (fourth from right) is Arbuckle's nephew Al St. John. The casting of the Keystone police force changed from one film to the next; many of the members were
The Thief Catcher (1914) with Charlie Chaplin (left) as a Keystone Cop