Netflix’s Sirens is a new psychological drama drawing viewers in with secrets, power, and obsession. But while the story may be fresh, the faces are very familiar.
The star-studded Sirens cast includes Oscar winners, Emmy nominees, and viral fan favorites whose previous roles have already made them household names. Or at least staples of your “Wait, I know them from somewhere!” moments.
So, if you’re wondering where you recognize the cast of Sirens from, you’re in the right place. Here, we have a breakdown of the main actors!
MORE: Sirens is EXACTLY the kind of show Netflix needs to do more of. Read why in our review.
The Cast of Sirens & Their Most Famous Roles
1) Julianne Moore as Michaela “Kiki” Kell
Michaela is Peter Kell’s enigmatic billionaire wife on Sirens. Part philanthropist, part socialite, and seemingly part femme fatale. When she hires Simone as her personal assistant, things spiral into a psychological maze.
About the Actor:
Known for roles that call for openness and sophistication, Julianne Moore has been a force in Hollywood for decades. Following an Oscar win for Still Alice (2014), she strikes a balance between indie dramas like Far from Heaven (2002) and franchise fare like The Hunger Games.
Where You’ve Seen Her:
- Boogie Nights (1997)
- Magnolia (1999)
- Still Alice (2014)
- Kingsman: The Golden Circle (2017)
- Lisey’s Story (Apple TV+)
2) Meghann Fahy as Devon DeWitt
Devon is Simone’s fiercely protective older sister. When she senses something off about Michaela, she refuses to stay silent. But it’s not just about Michaela. It’s about wanting help with their ailing father.
About the Actor:
Meghann Fahy began on daytime soaps (One Life to Live) and earned breakout recognition for her role as Sutton in The Bold Type. But it was her Emmy-nominated performance as Daphne in The White Lotus Season 2 that turned her into a viral sensation.
Where You’ve Seen Her:
- The White Lotus (2022, HBO)
- The Bold Type (2017–2021)
- The Perfect Couple (2024, Netflix)
3) Milly Alcock as Simone DeWitt
Simone, the younger DeWitt sister, becomes entangled in Michaela’s world as her assistant. She is drawn to danger, luxury, and control on Sirens. And the appearance of her sister Devon throws this picture perfect version of herself she’s created spiraling.
About the Actor:
Australian actress Milly Alcock soared to fame with House of the Dragon. She gained critical acclaim for playing a young Rhaenyra Targaryen. But her biggest upcoming role as Supergirl is set to make her a true household name.
Where You’ve Seen Her:
- House of the Dragon (2022)
- Upright (2019–2022)
- Reckoning (2019)
4) Kevin Bacon as Peter Kell
Peter is the quiet but powerful head of Kell Securities and Michaela’s husband. He watches everything and the power he holds might surprise you by the end of the series.
About the Actor:
With over four decades of acting and a pop culture game named after him, Kevin Bacon’s iconic status is unshakable. He’s starred in classics like Footloose (1984), Tremors (1990), and Flatliners (1990.) And he won a Golden Globe in 2010 for Taking Chance.
Where You’ve Seen Him:
- Footloose (1984)
- Mystic River (2003)
- The Following (2013–2015)
- Beverly Hills Cop: Axel F (2024)
5) Glenn Howerton as Ethan Corbin III
Ethan is the charming, reckless neighbor on Sirens. He has old money and zero boundaries. He’s fading fast but doesn’t know it yet. And he’s got his eyes and heart set on Simone.
About the Actor:
Known for his cutting comedic timing, Glenn Howerton is famously known as Dennis from It’s Always Sunny in Philadelphia. It’s a role he’s played since 2005. He’s also the executive producer, writer, and creator of the show.
Where You’ve Seen Him:
- It’s Always Sunny in Philadelphia
- A.P. Bio
- The Mindy Project
6) Josh Segarra as Raymond
Raymond is Devon’s ex (?) and current boss, making everything complicated more complicated as Devon tries to get her sister on board to help out with their father. His intentions on Sirens? A mystery.
About the Actor:
Josh Segarra is a versatile actor who’s moved from superhero shows like Arrow (2016) and She-Hulk: Attorney at Law (2022) to sharp comedies like Abbott Elementary (2025) and slashers like Scream VI.
Where You’ve Seen Him:
- Arrow (2016–2019)
- The Other Two (2019–2023)
- She-Hulk: Attorney at Law (2022)
- Scream VI (2023)
Sirens is now on Netflix.
