The son of a fighter pilot; spent his early childhood in London and South Korea before moving to Montgomery, AL, with his family at age 10.
Acted in plays at the Alabama Shakespeare Festival before attending the New World School of the Arts in Miami (after deciding against pursuing a career in aeronautical engineering).
Made TV debut in the 2002 TNT movie Monday Night Mayhem, playing sports-TV executive Dick Ebersol.
Met fellow It's Always Sunny executive producers Charlie Day and Rob McElhenny in New York; in Los Angeles, they began work on It's Always Sunny on TV as a "home movie," prompting FX to invite them to make a formal pilot.
Has done voice-over work on Seth MacFarlane's American Dad and The Cleveland Show.
Jill Latiano — Wife
Courtney — Sister
Janice Howerton — Mother
Glenn Franklin Howerton Jr. — Father
Miles Robert Howerton — Son
Isley Ray Howerton — Son
The Juilliard School, New York, New York, United States (BFA in Drama, 2000)