Sirens is a dark comedy series that made its debut on Netflix on May 22, 2025. Thanks to its stellar cast and an engaging storyline, it has rapidly built a strong fan following. With a rating of 79% on Rotten Tomatoes, the series has garnered much praise for its entertainment value, making it one of the most discussed fresh shows among younger audiences. If you haven’t yet experienced Sirens, you’re probably wondering about the talented cast behind this captivating series. Let’s dive into who plays whom in this exciting new show.
Meghann Fahy as Devon DeWitt
Devon DeWitt, played by Meghann Fahy, is a fast-food worker from Buffalo, New York, who also juggles the care of her father, who suffers from dementia. Despite her loyalty and protective nature, Devon often makes questionable choices due to the trauma of losing her mother to suicide. She embarks on a journey to a lavish island to rescue her sister, Simone, whom she believes is entangled with a cult-like group.
Meghann Fahy gained fame through her roles in popular shows like The Bold Type, The Perfect Couple, and The White Lotus Season 2.
Milly Alcock as Simone DeWitt
Simone DeWitt, the younger sister of Devon, grew up in the foster care system after their mother’s tragic suicide. Despite Devon’s constant love and supervision, Simone becomes engrossed in her new role with billionaire philanthropist Michaela Kell, leading her to neglect her family. Her obsession with her boss spirals out of control, distancing her from her loved ones.
Milly Alcock gained recognition for her role as young Rhaenyra Targaryen in House of the Dragon and has also appeared in Reckoning and The Gloaming. Additionally, she is set to portray Kara Zor-El / Supergirl in the upcoming 2026 film Supergirl: Woman of Tomorrow.
Glenn Howerton as Ethan Corbin
Ethan Corbin, the affluent neighbor of the Kells, finds himself falling for Simone and wants to propose to her. While he is often viewed as a playboy squandering his inheritance, his naïveté and lack of worldly experience often overshadow his charms.
Glenn Howerton is best known for his role as Dennis Reynolds in the acclaimed sitcom It’s Always Sunny in Philadelphia. He has also starred in The Mindy Project and A.P. Bio.
Bill Camp as Bruce DeWitt
Bruce DeWitt is the father of Simone and Devon, whose negligence and addiction to alcohol greatly impacted their childhood following their mother’s suicide. His inability to care for his daughters led to Simone being placed in foster care. As time passed, Bruce developed early-onset dementia and became fully reliant on Devon for care. Bill Camp has appeared in significant films like Lincoln, Lawless, and News of the World.
Kevin Bacon as Peter Kell
Peter Kell is a charming yet manipulative character in the series, married to Michaela. While he isn’t outright antagonistic, his dynamics create tension, especially when it comes to Simone. He supports Michaela’s scheming, which often puts Simone in vulnerable positions. Kevin Bacon has an extensive filmography, including classics such as Apollo 13 and Crazy, Stupid, Love.
Julianne Moore as Michaela Kell
Michaela Kell epitomizes wealth and manipulativeness, readily exploiting her employees for personal gain. After recognizing Simone’s fixation on her, she encourages this obsession, isolating Simone from her family. Michaela and Peter are portrayed as the ultimate power couple within Port Haven. Julianne Moore is recognized for her roles in critically acclaimed films such as The Hunger Games: Mockingjay Part 1 and 2 and The Lost World: Jurassic Park.
If you’re intrigued by the characters and their complex lives in Sirens, it’s worth diving deeper into the show and exploring how these dynamics unfold. The remarkable performances by the cast make it a must-watch for dark comedy enthusiasts. Continue your journey through this fascinating world, and check out related content at Moyens I/O.