Trivia

His first name is actually pronounced in the traditional Irish way (Bree'un).

He is from County Cavan in Ireland.

In 2004 he withdrew from a Kennedy Center production of "A Streetcar Named Desire" starring Patricia Clarkson and girlfriend Amy Ryan in the role of Mitch in order to follow his hit off-Broadway show "Frozen" to Broadway. He subsequently won a Tony.

In 1998 he was nominated for a Tony Award for best actor for his role in Martin McDonagh's The Beauty Queen of Leenane.

Appearing on Broadway in John Patrick Shanley's Doubt, a parable. This play won the 2005 Pulitzer Prize for Drama. (March 2005)

Trained at the Samuel Beckett Center and Trinity College in Dublin.

Born in Ireland, O'Byrne has lived in New York for nearly 20 years and he is a devoted follower of the New York Mets.

In 1996 he became engaged to actress Amy Ryan.

Won Broadway's 2004 Tony award as Best Actor (Featured Role - Play) for his performance as Ralph in "Frozen." This followed two Tony nominations for plays written by Martin McDonagh: in 1998 as Best Actor (Featured Role - Play) for "The Beauty Queen of Leenane;" and in 1999 as Best Actor (Play) for "The Lonesome West."

Before he made his name on Broadway he used to perform in plays for a Theatre company he formed with writer Tony Kavanagh.

Appearing on Broadway in Conor McPherson's "Shining City". (May 2006)

On Broadway, giving a Tony-nominated turn in the Tony-nominated trilogy "The Coast of Utopia". (June 2007)

He was nominated for Outstanding Actor at the Drama Desk Awards for his role in Frozen.

He won the 2004-2005 Drama Desk Award for Outstanding Actor for his Role in John Patrick Shanley's Doubt.