Roscoe Arbuckle was one of the biggest stars in silent comedy before he was charged with manslaughter in 1921. Although he was ultimately acquitted, he was blacklisted by Hollywood.
This video offers a brief sample of some of his best work, and features some of the other silent comedy stars he worked with: Buster Keaton, Mabel Normand and Charlie Chaplin.
For more information about the Arbuckle scandal, I highly recommend this episode of the podcast You Must Remember This: