Question: Which director, John Francis Dillon or Mark L. Lester, was also an actor?
Sentence (from "Mark L. Lester"): He is best known as a prolific director of cult films including the disco musical "Roller Boogie", the vigilante thriller film "Class of 1984", the Stephen King-adaptation "Firestarter" (1984), the Arnold Schwarzenegger action film "Commando" (1985), and the action-comedy "Armed and Dangerous" (1986), starring John Candy, Eugene Levy, and Meg Ryan.
Relevant evidence: No