Glenn Howerton
Glenn Franklin Howerton III (born April 13, 1976) is an American actor of television and film. He is best-known for his role as Dennis Reynolds on FX's It's Always Sunny in Philadelphia (on which he is also a writer and executive producer). He also played Corey Howard on the short-lived 2002 sitcom That '80s Show.
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Movies
Fool's Paradise
Business Manager
BlackBerry
Jim Balsillie
The Thief Collector
Jerry Alter
How It Ends
John
Archenemy
The Manager
Mr. Bungle: The Night They Came Home
Audience
The Hunt
Richard
Officer Downe
Dominic
When Pigs Fly
Uncle Al
Coffee Town
Will
Everything Must Go
Gary
A Very Sunny Christmas
Dennis Reynolds
The Nightman Cometh: Live
Dennis Reynolds
Crank: High Voltage
Doctor
The Strangers
Mike
Two Weeks
Matthew Bergman
Crank
Doctor
Serenity
Lilac Young Tough
Must Love Dogs
Michael
E.D.N.Y.
Paul Webster
Monday Night Mayhem
Dick Ebersol
TV Series
Sirens
Ethan Corbin II
5 Episodes
Velma
Fred (voice)
21 Episodes
Abbott Elementary
Dennis
1 Episode
The Fugitive
Jerry Conwell
5 Episodes
A.P. Bio
Jack Griffin
42 Episodes
Fargo
Don Chumph
5 Episodes
The Mindy Project
Cliff Gilbert
13 Episodes
Unsupervised
Clint / Dirt (voice)
1 Episode
Vietnam in HD
Don Devore
6 Episodes
The Cleveland Show
20 Episodes
Glenn Martin, DDS
2 Episodes
It's Always Sunny in Philadelphia
Dennis Reynolds
177 Episodes
American Dad!
Animal Control Guy #1 (voice)
1 Episode
That '80s Show
Corey Howard
13 Episodes
The Job
Young Guy
1 Episode
Family Guy
(voice)
3 Episodes
ER
Nick Cooper
6 Episodes
The Simpsons
Peter Linz (voice)
1 Episode