Tracy S. Letts is an American actor, playwright, and screenwriter. He started his career at the Steppenwolf Theatre before making his Broadway debut as a playwright for August: Osage County (2007), for which he received the Pulitzer Prize for Drama and the Tony Award for Best Play. As an actor, he won the Tony Award for Best Actor in a Play for the Broadway revival of Who's Afraid of Virginia Woolf? (2013).

Bug is a 2006 psychological horror film directed by William Friedkin and written by Tracy Letts, based on his 1996 play of the same name. The film stars Ashley Judd, Michael Shannon, Lynn Collins, Brían F. O'Byrne, and Harry Connick Jr.