Born in Japan and raised in Montgomery, AL, actor Glenn Howerton attended Juilliard before making his screen debut in the 2002 made-for-television feature Monday Night Mayhem. Recurring roles in That '80s Show and ER found Howerton settling into a comfortable small-screen schedule in 2002 and 2003, with supporting parts in such features as Serenity and Crank coming along ...more
- 2008
- The Strangers
- Mike
- 2007
- It's Always Sunny in Philadelphia: Season 03
- Dennis Reynolds
- 2006
- Crank
- Doctor Ankleson
- 2006
- Two Weeks
- Matthew Bergman
- 2006
- It's Always Sunny in Philadelphia: Season 02
- Dennis Reynolds
- 2005
- It's Always Sunny in Philadelphia (TV Series)
- Executive Producer
- 2005
- It's Always Sunny in Philadelphia (TV Series)
- Show Creator










Plus