Signature Theatre today will present an all-star benefit reading of Sam Shepard’s contemporary classic True West, led by acclaimed actors Ebon Moss-Bachrach (The Bear, Girls) as Austin, David Harbour (Stranger Things, Black Widow) as Lee, Ann Dowd (The Handmaid’s Tale, Compliance) as Mom, and Denis O’Hare (American Horror Story, True Blood) as Saul.