The Sirens cast features Meghann Fahy, Milly Alcock and Glenn Howerton. This info article contains minor spoilers and character details for Molly Smith Metzler’s 2025 Netflix miniseries. Check out more cast guides in Vague Visages’ Know the Cast category.

Sirens takes place at a luxurious beach estate. As Devon looks after her sick father, she tracks down her socialite sister for help. The narrative follows the main protagonists as they attempt to establish control over each other while dealing with a group of wealthy and powerful individuals. Here’s every actor and character in Sirens, an adaptation of Molly Smith Metzler’s 2011 play Elemeno Pea.

Read More at VV — Know the Cast: ‘Bet’

Sirens Cast: Meghann Fahy as Devon DeWitt

Character Profile: The sister of a socialite. She tracks down her sibling to help with their sick father. Devon clashes with a powerful family while thinking about her past issues with alcohol.

Fahy’s Resume: Devyn in Gossip Girl (2009), Jenny Aschler in Law & Order: Special Victims Unit (2014), Sutton Brady in The Bold Type (2017-21), Daphne Sullivan in The White Lotus (2022), Merritt Monaco in The Perfect Couple (2024)

Read More at VV — Know the Cast: ‘Ransom Canyon’

Sirens Cast: Milly Alcock as Simone DeWitt

Character Profile: Devon’s sister. She works as the assistant for a wealthy woman. Simone suffers from panic attacks while climbing up the social ladder.

Alcock’s Resume: Isabella Barrett in High Life (2017), Meg in Upright (2019-), Sam Serrato in Reckoning (2019-20), Jenny McGinty in The Gloaming (2020), Young Rhaenyra Targaryen in House of the Dragon (2022-24)

Read More at VV — Know the Cast: ‘Pulse’

Sirens Cast: Glenn Howerton as Ethan Corbin

Character Profile: Simone’s wealthy boyfriend. He is the neighbor of her boss. Ethan awkwardly proposes to Simone and subsequently upsets her.

Howerton’s Resume: Dennis Reynolds in It’s Always Sunny in Philadelphia (2005-), Lilac Young Tough in Serenity (2005), Mike in The Strangers (2008), Jack Griffin in A.P. Bio (2018-21), Jim in BlackBerry (2023)

Read More at VV — Know the Cast: ‘Caught’

Sirens Cast: Bill Camp as Bruce DeWitt

Character Profile: Devon and Simone’s father. He is a U.S. Navy veteran who enjoys bowling. Bruce suffers from early-onset dementia.

Camp’s Resume: Radburn in 12 Years a Slave (2013), Dennis Box in The Night Of  (2016), Detective Garrity in Joker (2019), Mr. Shaibel in The Queen’s Gambit (2020), Ray Loewen in The Burial (2023)

Read More at VV — Know the Cast: ‘The Residence’

Sirens Cast: Felix Solis as Jose

Character Profile: A property manager. He is a tech expert who keeps an eye on houseguests. Jose colludes with his employers.

Solis’ Resume: Brasher in The Forgotten (2004), Detective Iggy Ornelas in The International (2009), Nestor in Man on a Ledge (2012), A.D.A. Ray Deferlito in Arbitrage (2012), Omar Navarro in Ozark (2020-22)

Read More at VV — Know the Cast: ‘Adolescence’

Sirens Cast: Kevin Bacon as Peter Kell

Character Profile: The Kell Securities CEO. He is the husband of Simone’s boss. Peter has two kids from a previous marriage.

Bacon’s Resume: Ren in Footloose (1984), Sebastian Caine in Hollow Man (2000), Sean Devine in Mystic River (2003), Walter in The Woodsman (2004), Hub Halloran in The Bondsman (2025)

Read More at VV — Know the Cast: ‘Zero Day’

Sirens Cast: Julianne Moore as Michaela Kell

Character Profile: Simone’s boss and Peter’s wife. She is a Fresno, California native who attended Yale University. Michaela thinks about her past as an attorney while trying to repair her marriage.

Moore’s Resume: Amber Waves in Boogie Nights (1997), Linda Partridge in Magnolia (1999), Cathy Whitaker in Far from Heaven (2002), Jules in The Kids Are All Right (2010), Lisey Landon in Lisey’s Story (2021)

Read More at VV — Know the Cast: ‘Running Point’

The Sirens cast also includes:

• Britne Oldford as Missy
• Trevor Salter as Jordan/Morgan
• Josh Segarra as Raymond
• Lauren Weedman as Patrice
• Patrick Voss Davis as Eddy
• Jenn Lyon as Cloe
• Erin Neufer as Lisa
• Emily Borromeo as Astrid
• Catherine Cohen as Lily-Rose
• Meghan O’Leary-Clark as Officer Coffin
• Juan Carlos Infante as Cyrus
• Jason Dietz as Joel

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.