Question: The 1927 musical "Show Boat" Features a character, Steve, who acts as a substititute for what feature of Ancient Greek plays, typically consisting of 12-50 players?
Sentence (from "Gaylord Ravenal"): In the musical, Magnolia and Ravenal become the leading players on the boat immediately after Julie and Steve are forced to leave the show, and not years later.
Relevant evidence: No