The Siren Call: Everything We Know About The Star-Studded Sirens Cast And Their Shocking New Netflix Dark Comedy

The *Sirens* limited series cast is one of the most exciting ensembles announced for a Netflix project in recent memory, bringing together an Oscar winner, a *White Lotus* breakout, and the future Supergirl. This dark comedy, set to premiere on May 22, 2025, has generated significant buzz not only for its compelling, high-society plot but also for the incredible star power of its main actors. The show promises a sharp, five-episode exploration of wealth, sisterhood, and the cult of personality, all adapted from the acclaimed play *Elemeno Pea* by Molly Smith Metzler.

The latest updates, as of December 12, 2025, confirm the full main cast and their character roles, providing a clear picture of the dramatic and comedic tensions at the heart of the show. With Julianne Moore, Meghann Fahy, and Milly Alcock leading the ensemble, alongside veterans Kevin Bacon and Glenn Howerton, *Sirens* is positioned as a must-watch limited series for 2025, offering a fresh, unique take on the 'rich people behaving badly' genre.

Meet the Sirens Cast: Full Biography and Character Profiles

The core of the *Sirens* limited series revolves around the dynamic between three powerful women, with two legendary male actors rounding out the central conflict. Here is the complete, up-to-date profile of the main cast and their roles in the limited series.

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• Julianne Moore as Michaela Kell: Born in 1960, Julianne Moore is an Academy Award-winning actress and one of the most respected figures in Hollywood, known for her incredible range in films like *Still Alice*, *Boogie Nights*, and *Far From Heaven*. In *Sirens*, she plays Michaela Kell, an enigmatic and wealthy socialite who is Simone’s new boss. Her character is central to the show’s "cult-ish" high-society atmosphere, which sparks concern from Devon.
• Meghann Fahy as Devon DeWitt: Born in 1990, Meghann Fahy is an American actress who achieved global recognition for her role as Daphne Sullivan in the second season of HBO’s *The White Lotus*. Fahy takes on the role of Devon DeWitt, the older sister who is genuinely worried about her younger sister Simone's intense new job. Devon is the grounded, concerned figure who travels to the lavish setting to investigate.
• Milly Alcock as Simone DeWitt: Born in 2000, Milly Alcock is an Australian actress who became a global sensation for her portrayal of young Rhaenyra Targaryen in the *Game of Thrones* prequel, *House of the Dragon*. In *Sirens*, she plays Simone DeWitt, the younger sister who has landed a dream job working for Michaela Kell. Her character is the one being drawn into the mysterious and possibly toxic world of the socialite.
• Kevin Bacon as Peter Kell: Born in 1958, Kevin Bacon is a veteran American actor whose career spans decades, from *Footloose* to *Mystic River* and *The Following*. He joins the cast as Peter Kell, the husband of Julianne Moore’s character, Michaela. This dynamic duo promises to deliver a compelling portrait of a powerful, complicated couple.
• Glenn Howerton as Ethan: Born in 1976, Glenn Howerton is best known as the co-creator, writer, and star of the long-running dark comedy *It's Always Sunny in Philadelphia*, where he plays the narcissistic Dennis Reynolds. Howerton is cast as Ethan in *Sirens*, a role that is expected to lean into his signature blend of charm and unsettling intensity.

The Dark Comedy Plot and Thematic Authority

The *Sirens* limited series is a five-episode dark comedy that is an adaptation of the 2011 play *Elemeno Pea* by Molly Smith Metzler, who also serves as the series creator and executive producer. The show’s thematic depth and sharp writing are key to its topical authority, moving beyond simple drama into complex social commentary.

The plot unfolds over a single, intense weekend at a luxurious, secluded beach house. The story centers on the reunion of two sisters, Devon and Simone DeWitt. Simone, the younger sister, is thrilled to be working as the personal assistant to the ultra-wealthy socialite Michaela Kell.

Devon, however, arrives with a growing sense of unease. She observes what she believes is a "creepy relationship" forming between her sister and the enigmatic Michaela, feeling that Simone is being consumed by the intense, cult-like life of her new boss. The series explores the chasm between the sisters, the corrosive nature of extreme wealth, and the seductive power of high-society influence. The dark comedy elements are expected to come from the sharp dialogue and the absurdity of the privileged world the characters inhabit, a theme popular in recent prestige television.

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Current Career Updates: Where to See the Sirens Cast Next

The star power of the *Sirens* cast is amplified by their high-profile projects immediately preceding and following the May 2025 Netflix premiere. This list of upcoming work demonstrates the current relevance and demand for the ensemble, adding significant topical authority to the series.

Julianne Moore: From Sirens to Echo Valley

Julianne Moore’s work on *Sirens* is just one part of her busy schedule. She is also set to star in the highly anticipated 2025 thriller film, *Echo Valley*, alongside Sydney Sweeney. In *Echo Valley*, Moore plays a mother whose life with her daughter is bound by a dark secret, showcasing her ability to transition seamlessly between comedy, drama, and intense thriller genres.

Meghann Fahy: The White Lotus Breakout’s New Projects

Meghann Fahy’s career has skyrocketed since her critically acclaimed role in *The White Lotus*. Before *Sirens* airs, she is starring in the Netflix mystery series *The Perfect Couple* (2024). Furthermore, Fahy is set to appear in the 2025 thriller film *Drop*, continuing her trend of taking on complex, high-stakes roles. This consistent stream of major projects confirms her status as one of Hollywood's most in-demand leading actresses.

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Milly Alcock: The Next DC Superhero

Milly Alcock's role in *Sirens* serves as a bridge between her breakout performance as young Rhaenyra Targaryen in *House of the Dragon* and her massive upcoming role in the DC Universe. Alcock has been cast as the new Supergirl in the DC film *Supergirl: Woman of Tomorrow*, which is one of the most talked-about superhero announcements of the year. Her participation in *Sirens* provides fans with a chance to see her in a contemporary, dark comedy role before she takes flight as a major comic book icon.

Kevin Bacon and Glenn Howerton: Veteran Star Power

The addition of Kevin Bacon and Glenn Howerton adds a significant layer of veteran talent to the limited series. Bacon, known for his versatility, has consistently worked across film and television, and his role as Peter Kell is a highly anticipated part of the *Sirens* dynamic. Howerton, meanwhile, continues his successful run on *It's Always Sunny in Philadelphia* while expanding his dramatic and comedic repertoire with projects like *Sirens*.

The collective filmography and current projects of the *Sirens* cast—including entities like *The White Lotus*, *House of the Dragon*, *Supergirl: Woman of Tomorrow*, *Echo Valley*, *The Perfect Couple*, *Drop*, and *It's Always Sunny in Philadelphia*—establish the Netflix limited series as a major television event. The show’s May 2025 release date positions it perfectly to dominate the streaming conversation, offering a fresh, sophisticated, and star-powered dark comedy for a global audience.