Glenn Howerton More at IMDbPro »

Actor:

1. "It's Always Sunny in Philadelphia" .... Dennis Reynolds (56 episodes, 2005-2009)
   ... aka It's Always Sunny (USA: promotional title)
       - Mac and Charlie Write a Movie (2009) TV episode .... Dennis Reynolds
       - The D.E.N.N.I.S. System (2009) TV episode .... Dennis Reynolds
       - Mac and Dennis Break Up (2009) TV episode .... Dennis Reynolds
       - Paddy's Pub: Home of the Original Kitten Mittens (2009) TV episode .... Dennis Reynolds
       - The Gang Wrestles for the Troops (2009) TV episode .... Dennis Reynolds
         (51 more)
2. "The Cleveland Show" .... Ernie Krinklesac / ... (5 episodes, 2009)
       - From Bed to Worse (2009) TV episode (voice) .... Ernie Krincklesac
       - Ladies' Night (2009) TV episode (voice)
       - Cleveland Jr. Cherry Bomb (2009) TV episode (voice) .... Ernie Krinklesac/Terry Kimple
       - Birth of a Salesman (2009) TV episode (voice) .... Terry Kimple
       - The One About Friends (2009) TV episode (voice) .... Ernie Krinklesac
3. It's Always Sunny in Philadelphia: It's a Very Sunny Christmas (2009) (V) .... Dennis Reynolds
4. "Glenn Martin DDS" (2 episodes, 2009)
       - A Bromantic Getaway (2009) TV episode (voice)
       - The Grossest Show on Earth (2009) TV episode (voice)
5. "American Dad!" .... Animal Control Guy #1 (1 episode, 2009)
       - Weiner of Our Discontent (2009) TV episode (voice) .... Animal Control Guy #1
6. Crank: High Voltage (2009) (uncredited) .... Doctor
   ... aka Crank 2 (USA: alternative title)
   ... aka Crank: High Voltage - Fully Charged (Australia: DVD title)
   ... aka High Voltage (Singapore: English title)
7. It's Always Sunny in Philadelphia Season 3: Meet the McPoyles (2008) (V) .... Dennis Reynolds
8. It's Always Sunny in Philadelphia Season 3: Sunny Side Up (2008) (V) .... Dennis Reynolds
9. It's Always Sunny in Philadelphia: Sunny Side Up (2008) (V) .... Dennis Reynolds
10. It's Always Sunny in Philadelphia Season 3: Dancing Guy (2008) (V) .... Dennis
11. Happy Wednesday (2008) .... Spencer Scott
12. The Strangers (2008) .... Mike
13. Two Weeks (2006) .... Matthew Bergman
14. Crank (2006) .... Doctor
15. Serenity (2005) .... Lilac Young Tough
16. Must Love Dogs (2005) .... Michael
17. "ER" .... Dr. Nick Cooper (6 episodes, 2003)
        - Freefall (2003) TV episode .... Dr. Nick Cooper
        - Death and Taxes (2003) TV episode .... Dr. Nick Cooper
        - The Greater Good (2003) TV episode .... Dr. Nick Cooper
        - Out of Africa (2003) TV episode .... Dr. Nick Cooper
        - Shifts Happen (2003) TV episode .... Dr. Nick Cooper
          (1 more)
18. E.D.N.Y. (2003) (TV) .... Paul Webster
19. "That Was Then" .... Noah Benjamin (1 episode)
        - Under Noah's Certain Terms (????) TV episode .... Noah Benjamin
20. "That '80s Show" .... Corey Howard (13 episodes, 2002)
        - Sophia's Depressed (2002) TV episode .... Corey Howard
        - Beach Party (2002) TV episode .... Corey Howard
        - Road Trip (2002) TV episode .... Corey Howard
        - Punk Club (2002) TV episode .... Corey Howard
        - Double Date (2002) TV episode .... Corey Howard
          (8 more)
21. "The Job" .... Young Guy (1 episode, 2002)
        - Gay (2002) TV episode .... Young Guy
22. Monday Night Mayhem (2002) (TV) .... Dick Ebersol
    

Writer:

• In Production
• 2000s

1. Boldly Going Nowhere (2009) (TV) (completed) (writer)
   
   
2. "It's Always Sunny in Philadelphia" (55 episodes, 2005-2009)
   ... aka It's Always Sunny (USA: promotional title)
       - Mac and Charlie Write a Movie (2009) TV episode (developer) (written by)
       - The D.E.N.N.I.S. System (2009) TV episode (developer)
       - Mac and Dennis Break Up (2009) TV episode (developer)
       - Paddy's Pub: Home of the Original Kitten Mittens (2009) TV episode (developer)
       - The World Series Defense (2009) TV episode (developer)
         (50 more)
   

Producer:

• In Production
• 2000s

1. Boldly Going Nowhere (2009) (TV) (completed) (executive producer)
   
   
2. It's Always Sunny in Philadelphia: It's a Very Sunny Christmas (2009) (V) (executive producer)
3. "It's Always Sunny in Philadelphia" (executive producer) (21 episodes, 2005-2008)
   ... aka It's Always Sunny (USA: promotional title)
       - Sweet Dee Has a Heart Attack (2008) TV episode (executive producer)
       - Mac and Dennis: Manhunters (2008) TV episode (executive producer)
       - Mac Is a Serial Killer (2007) TV episode (executive producer)
       - The Gang Finds a Dumpster Baby (2007) TV episode (executive producer)
       - Dennis and Dee Get a New Dad (2006) TV episode (executive producer)
         (16 more)
   

Soundtrack:

1. "It's Always Sunny in Philadelphia" (3 episodes, 2006-2009)
   ... aka It's Always Sunny (USA: promotional title)
       - The Gang Wrestles for the Troops (2009) TV episode (performer: "Birds of War")
       - Paddy's Pub: The Worst Bar in Philadelphia (2008) TV episode (performer: "It's So Hard to Say Goodbye to Yesterday")
       - The Gang Goes Jihad (2006) TV episode (performer: "More than words")
   

Self:

1. "Last Call with Carson Daly" (1 episode, 2009)
       - Episode #9.16 (2009) TV episode
2. "Free Radio" .... Himself (1 episode, 2009)
       - Anna's Date (2009) TV episode .... Himself
3. "Talkshow with Spike Feresten" .... Himself (1 episode, 2008)
       - Glenn Howerton (2008) TV episode .... Himself
4. Two Weeks: Learning to Live through Dying (2007) (V) .... Himself
5. "The View" .... Himself (1 episode, 2007)
       - Episode dated 7 September 2007 (2007) TV episode .... Himself
6. It's Always Sunny in Philadelphia: Making of Season 1 & 2 (2007) (V) .... Himself
7. "Square Off" .... Himself (1 episode, 2006)
       - Episode #1.13 (2006) TV episode .... Himself