Clay is a 2008 Hip-hop musical loosely based on Shakespeare's "Henry IV, Parts 1 and 2", the central character, Sir John, is based on Falstaff, a fictional character who is mentioned in five plays by who?
Clay (musical):  The central character, Sir John, is based on Falstaff. Falstaff: Sir John Falstaff is a fictional character who is mentioned in five plays by William Shakespeare and appears on stage in three of them.
William Shakespeare