The Beast in Me cast features Claire Danes, Matthew Rhys and Brittany Snow. This info article contains minor spoilers and character details for Gabe Rotter’s 2025 Netflix miniseries. Check out more cast guides in Vague Visages’ Know the Cast category.

The Beast in Me centers on an American author. As Aggie Wiggs plans her next book, she clashes with her infamous neighbor. The narrative follows the main protagonist as she researches a possible serial killer. Here’s every actor and character in The Beast in Me.

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The Beast in Me Cast: Claire Danes as Aggie Wiggs

Character Profile: A Pulitzer Prize-winning author. She struggles with mental health issues after her eight-year-old son’s death. Aggie agrees to write a book about her controversial neighbor.

Danes’ Resume: Angela Chase in My So-Called Life (1994-95), Juliet in Romeo + Juliet (1996), Julia Vaughan in The Hours (2002), Carrie Mathison in Homeland (2011-20), Rachel Fleishman in Fleishman Is in Trouble (2022)

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The Beast in Me Cast: Matthew Rhys as Nile Jarvis

Character Profile: Aggie’s neighbor. He is the wealthy son of a real estate business mogul. Nile tries to convince Aggie that he didn’t kill his wife.

Rhys’ Resume: Philip Jennings in The Americans (2013-18), Montgomery Reece in Burnt (2015), Daniel Ellsberg in The Post (2017), Lloyd Vogel in A Beautiful Day in the Neighborhood (2019), Perry Mason in Perry Mason (2020-23)

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The Beast in Me Cast: Brittany Snow as Nina

Character Profile: Nile’s second wife. She is a gallery owner who tries to develop her professional reputation. Nina worries that Nile might be a serial killer.

Snow’s Resume: Meg Pryor in American Dreams (2002-05), Amber Von Tussle in Hairspray (2007), Chloe in the Pitch Perfect Movie Franchise (2012-17), Bobby-Lynne in X (2022), Sophie O’Neil in The Hunting Wives (2025)

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The Beast in Me Cast: Natalie Morales as Shelley

Character Profile: Aggie’s ex-wife. She is a painter who wants to move on from the past. Shelley receives a professional offer from Nina.

Morales’ Resume: Director of Plan B (2021) — Also, Lucy Santo Domingo in Parks and Recreation (2010-15), Clementine Barrios in Girls (2014-15), Rosie Casals in Battle of the Sexes (2017), Theresa in Self Reliance (2023)

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The Beast in Me cast also includes:

• Tim Guinee as Rick “Wrecking Ball” Jarvis
• Hettienne Park as Agent Erika Breton
• Jonathan Banks as Martin Jarvis
• David Lyons as Agent Brian Abbott
• Aleyse Shannon as Olivia Benitez
• Bubba Weiler as Teddy Fenig
• Deirdre O’Connell as Carol McGiddish
• Julie Ann Emery as Lila Jarvis
• Amir Arison as Frank Breton
• Peter Grosz as Elijah
• Leonard Gerome as Cooper Morris-Wiggs
• Bill Irwin as James Ingram
• Will Brill as Chris Ingram
• Kate Burton as Mariah Ingram
• Susan Pourfar as Lorna Fenig
• Brennan Brown as Phineas Gold
• Eleni Yiovas as Christina Moore
• Rocco Gozzi as Wyatt Jarvis

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