Joe Mahon is a chameleon. An actor in the vein of Meryl Streep or Gary Oldman, Mahon nimbly switches between three characters – the bombastic Jack, thuggish Riddick and spineless Charles – as he presents to us, his audience of “interns,” a typical day in a casting office. You will laugh, and actors in the audience may just cringe a little bit as all of his characters peel back the curtain on “The Industry,” revealing its dirty secrets and seedy underside. Mahon’s performance is nuanced, calculated and precise, and grounded in reality. This show is an absolute can’t miss.