Sean grew up in the Chicago suburb of Glen Ellyn, Illinois. His father, Ron, a lithographer, left him and his four siblings when Sean was a young child. Sean says he hasn't seen his father in more than 10 years. His mother, Mary, works at a food bank. Sean attended Illinois State University where he studied music and theatre. He supported himself through his college years by playing piano for voice lessons and working in community theater. He played a stint with the Second City comedy troupe and then became - www.imdb.com

This manic comic performer initially supported himself as a musician before becoming an actor. After joining the legendary improv group Second City, he started appearing in TV commercials and series. But his life and career kicked into overdrive in 1998 when he played the lead role of a gay photographer obsessed with a model in the indie comedy Billy's Hollywood Screen Kiss. The pivotal year continued when he then signed on to Will & Grace as self-absorbed gay actor Jack McFarland, a part he essayed wit - www.tvguide.com

Head Case: Season 1: Episode 7 -- Dr. Goode invites Lola, Dr. Goode's assistant, out on the town after getting worked up in her session with Rick Fox. Sean Hayes luckily finds himself at the same watering hole as Dr. Goode for a bit of free help as Lola's curiosity gets the best of her. watch - www.tvguide.com