It's Always Sunny in Philadelphia

Glenn Howerton stars as "Dennis" in the critically-acclaimed FXX original series It’s Always Sunny in Philadelphia. He also serves as a writer and executive producer of the show.

Career Highlights

Glenn Howerton can most recently be seen playing Jim Balsillie in IFC’s Canadian biopic film, BlackBerry. Directed by Matt Johnson, the film portrays the history of the BlackBerry line of mobile phones. BlackBerry premiered at the Berlin Film Festival in May 2023 to rave reviews with Deadline calling his performance “sensational,” and Variety saying he “stole the show in the rowdy Tech-World Satire." Howerton's portrayal in the breakout indie film garnered him a nomination for Best Supporting Actor at the Gotham Awards and Best Supporting Performance at the Independent Spirit Awards.Howerton is best known for playing the jerk next door, “Dennis Reynolds” on FXX’s wildly popular and long running It’s Always Sunny in Philadelphia. In addition to his starring role, Howerton serves as co-creator and writer on the series. Howerton along with Rob McElhenney and Charlie Day, co-host the highly popular, It’s Always Sunny podcast, where they look back at the last 16 seasons of the show. Howerton and the other Sunny stars and co-creators recently launched Four Walls, a new Irish whiskey brand. It was initially released as a premium, collector's edition bottle to benefit the bartending community and to celebrate 15 record-breaking seasons of their show, the everyday-drinking version of Four Walls began rolling out to bars around the country in 2023.Howerton can also be seen in Fool's Paradise, written and directed by Charlie Day. The film follows a fool who accidentally becomes a celebrity and loses it all. Glenn Howerton can be also seen playing “John” in How It Ends, the feel-good apocalyptic comedy-drama film written, directed and produced by Daryl Wein and Zoe Lister-Jones. Glenn previously starred alongside Patton Oswalt in four seasons of the NBC &amp; Peacock comedy A.P. Bio.A true multi-hyphenate, Howerton is a graduate of the prestigious Juilliard School of Drama and began his career onstage. He has also been seen in television hits such as The Mindy Project, the first installment of FX’s original anthology series Fargo and Showtime’s House of Lies. His film work includes Lionsgate’s Everything Must Go starring Will Ferrell, Lionsgate’s Crank and Crank 2 starring Jason Statham; he also produced his first feature All the Wilderness starring Kodi Smit-McPhee.The son of a decorated Air Force fighter pilot, Howerton was born in Japan and lived all over the world before his family settled in Montgomery, Alabama. Howerton currently lives in Los Angeles with his wife and children.

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

Glenn Howerton headshot wearing a striped shirt with collar and buttons

Glenn Howerton as Dennis Reynolds | Always Sunny on FXX

It's Always Sunny in Philadelphia

Career Highlights

Kaitlin Olson
as Sweet Dee

Danny DeVito
as Frank

Mary Elizabeth Ellis
as The Waitress

Glenn Howerton as Dennis Reynolds | Always Sunny on FXX

It's Always Sunny in Philadelphia

Kaitlin Olsonas Sweet Dee

Danny DeVitoas Frank

Mary Elizabeth Ellisas The Waitress

Kaitlin Olson
as Sweet Dee

Danny DeVito
as Frank

Mary Elizabeth Ellis
as The Waitress