Exclusive | Glenn Howerton on his new show Sirens and why he likes playing raving lunatics and maniacs

He’s going from the D.E.N.N.I.S.system to the beach.  Glenn Howerton, best known for starring in “It’s Always Sunny in Philadelphia,” stars in the new Netflix miniseries “Sirens” (premiering May 22). “I had never read anything quite like this script, tonally.

It’s like a suspenseful drama, but it’s also really funny,” Howerton exclusively told The Post. The plot follows Devon (Meghann Fahy, “The White Lotus”), who thinks her sister, Simone (Milly Alcock, “House of the Dragon”), needs to be rescued from her new job.Simone has been working for the wealthy socialite Michaela Kell (Julianne Moore), who Devon thinks is running a cult at her lavish beach estate. Kevin Bacon co-stars as Michaela’s husband, Peter, and Howerton plays their friend and Simone’s boyfriend, Ethan. “[Ethan is] so different from so many characters I play,” Howerton explained.

“[But] he has an element of other characters I play.He’s not a slob.

He’s a well put together rich dude, which is a little bit typecasting for me.”Ethan isn’t fundamentally a bad person, despite being “a bit naive and oblivious at times,” the actor continued.“I’m always getting cast as raving lunatics and maniacs, so it’s nice to do something different, every once in a while.”Howerton has previously appeared on “The Mindy Project,” “Fargo,” and “BlackBerry” and has played sociopathic Dennis Reynolds on “It’s Always Sunny” since its 2005 debut.“I do think a lot of actors enjoy playing things that are very different from themselves, and having the opportunity to — as Dennis would put it — wear another man’s skin,” he quipped. “For me, there’s something cathartic about portraying characters that behave in a way that I would never behave.

And getting to just be selfish and narcissistic and a bit of a jerk and just yell at people,” Howerton continued.“I strive to be a good person in my real life, so it’s fun to be bad.And I ...