Mike Birbiglia (; born June 20, 1978) is an American stand-up comedian, actor, storyteller, director, producer and writer. He is a frequent contributor to This American Life and The Moth, and has released several comedy albums and television specials. His feature-length directorial debut Sleepwalk with Me (2012), based on his one-man show of the same name and in which he also starred, won awards at the Sundance and Nantucket film festivals. He also wrote, directed, and starred in the comedy-drama Don't Think Twice (2016). His 2010 book Sleepwalk with Me and Other Painfully True Stories was a New York Times bestseller and a finalist for the 2011 Thurber Prize for American Humor. Birbiglia has appeared in films such as Your Sister's Sister (2011), Cedar Rapids (2011), and Trainwreck (2015), played a recurring role in Orange Is the New Black, Billions and has guest starred in episodes of Girls, Inside Amy Schumer, and Broad City. He also replaced Jimmy Kimmel on his talk show for a week, as Kimmel caught COVID-19.