Question: Who held more roles in the film industry, Mervyn LeRoy or Mack Sennett?
Sentence (from "Mack Sennett"): Mack Sennett (born Michael Sinnott; January 17, 1880 – November 5, 1960) was a Canadian-born American director and actor and was known as an innovator of slapstick comedy in film.
Relevant evidence: Yes