Besides his work in film and television , William has also appeared in over 80 theatrical productions as of 2018. He has played the title roles in "MacBeth" and "Coriolanus", King Henry in "The Lion in Winter", as well as Petruchio in "Taming of the Shrew", Enobarbus in "Antony and Cleopatra", Ned Weeks in "The Normal Heart", John in "Oleanna", Aston in "The Caretaker", Starbuck in "The Rainmaker" and Johnny in "Frankie and Johnny in the Claire De Lune", to name a few. He has also directed over a dozen plays, including his own compositions "Coco-Puffs and Caviar" and "Phantoms".