Glenn Howerton plays 'Dennis Reynolds' on It's Always Sunny in Philadelphia. He also serves as writer and executive producer for the critically-acclaimed series.

Howerton recently starred in the feature film Coffee Town. His other film work includes the acclaimed Will Ferrell film Everything Must Go, The Strangers (Rogue Pictures), Must Love Dogs (Warner Bros.), Crank and Crank 2 (Lionsgate), and Two Weeks (MGM).

The son of a decorated Air Force fighter pilot, Howerton was born in Japan and lived all over the world in places like England and Korea before settling with his family in Montgomery, Alabama. He is a graduate of The Juilliard School's acting program.