Cast of Severance (Season 1-2) | Complete Guide to the Main and Supporting Actors

Created by Dan Erickson.

Severance premiered its first season on February 18, 2022. And Season 2 debuted on January 17, 2025.

Distributed by Apple TV+.

Series Review

Severance is a genre-defying psychological thriller from Apple TV+ that dives deep into the cost of corporate control and fractured identity.

Set within the eerie walls of Lumon Industries, the story follows Mark Scout (Adam Scott), an employee who undergoes a “severance” procedure that splits his work and personal memories.

What begins as an escape from grief soon unravels into a tense corporate conspiracy.

Season 2 raises the stakes, revealing chilling truths and emotional twists—especially with the return of Mark’s presumed-dead wife, Gemma (Dichen Lachman).

With its minimalist visual style, razor-sharp performances, and haunting philosophical themes, Severance offers more than just suspense—it questions the very fabric of human autonomy.

It’s a surreal, emotional, and timely exploration of the work-life divide.

Ratings:

• Rotten Tomatoes: 97%

• Metacritic: 83

• IMDb: 8.7/10

• Google Audience Score: 91% approval.

Severance Actors

Adam Scott as Mark Scout

DOB: April 3, 1973

Bio: Born and raised in Santa Cruz, California, Adam Scott trained in improv with The Groundlings in L.A. before breaking out on cable comedies.

He earned an MFA from NYU’s Tisch School of the Arts and pivoted to drama with acclaimed turns in Big Little Lies (HBO) and The Good Place (NBC).

Off-screen, he co-hosts the film podcast “Filmspotting” and is an outspoken advocate for mental-health awareness.

Role: Mark Scout, a history professor who literally splits his work-self from his personal self—and must fight to reclaim both.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Subtle emotional shifts as Mark peels back Lumon’s layers to protect those he loves.

Favorite Things: Vintage board games, sci-fi paperbacks, and longboarding in Santa Cruz.

Notable Works: Parks and Recreation, Big Little Lies, The Good Place.

Britt Lower as Helly R.

DOB: August 2, 1985

Bio: Britt Lower is an American actress recognized for her work in television and film.

She is best known for her role as Liz Greenberg in the comedy series Man Seeking Woman.

She studied Meisner technique at the William Davis Centre and first turned heads in the cult comedy Man Seeking Woman.

Role: Helena “Helly R.” Eagan, the CEO’s daughter whose fierce rejection of severance becomes the show’s key act of defiance.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Raw, unfiltered rebellion as Helly rejects corporate control and connects with her human self.

Favorite Things: Craft brewing experiments, punk-rock shows, and drafting her own graphic novels.

Notable Works: Man Seeking Woman, Darkest Miriam.

Zach Cherry as Dylan George

DOB: November 1, 1987

Bio: A former New York stand-up and Upright Citizens Brigade performer, Zach Cherry holds a psychology degree from Vassar.

He made his feature debut opposite Tom Holland in Spider-Man: Homecoming and has since balanced blockbusters (Shang-Chi) with indie comedies.

He writes sketch and hosts live comedy shows whenever he can.

Role: Dylan George, a Macrodata Refiner whose wry humor masks surprising courage and loyalty.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Clever one-liners and moments of genuine heroism as Dylan helps unravel Lumon’s mind games.

Favorite Things: Improv jams, experimental comedy podcasts, and afternoon kickball leagues.

Notable Works: Spider-Man: Homecoming, Shang-Chi and the Legend of the Ten Rings.

Tramell Tillman as Seth Milchick

DOB: June 17, 1985

Bio: A Juilliard drama graduate, Tramell Tillman honed his craft on Broadway before segueing to TV.

He starred in off-Broadway hits like The Brother/Sister Plays and is known for his meticulous character research—once shadowing corporate managers for weeks to portray Milchick’s managerial zeal.

Role: Seth Milchick, the micromanaging manager enforcing Lumon’s ruthless severance protocols.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Unnerving calm that slides into authoritarian fervor, making Milchick one of TV’s most compelling villains.

Favorite Things: Collecting mid-century office art, lunching at classic NYC delis, and practising mindfulness meditation.

Notable Works: Mission: Impossible – Dead Reckoning. Sweethearts.

Jen Tullock as Devon Scout-Hale

DOB: July 4, 1983

Bio: Jen Tullock is an American actress and writer.

She has appeared in various television series and films, often taking on supporting roles that add depth to the story.

She cut her teeth on guest spots in Perry Mason and The Blacklist, and runs a small production company focused on women’s stories.

Role: Devon Scout-Hale, Mark’s sister and Ricken’s wife, who leads the real-world investigation into Lumon’s secrets.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Empathy-driven determination as Devon reconnects with her family and exposes corporate malfeasance.

Favorite Things: DIY podcasting, typewriter restoration, and weekend writing retreats.

Notable Works: Perry Mason, Before You Know It.

Dichen Lachman as Ms. Casey / Gemma Scout

DOB: February 22, 1982

Bio: Born in Nepal, raised in Australia, Dichen Lachman began her career as a model before training at Melbourne’s National Theatre.

She’s fluent in five languages, holds a BA in Anthropology, and is known for her chameleon-like range in Agents of S.H.I.E.L.D., Altered Carbon, and indie thrillers.

Role: Gemma Scout, Mark’s presumed-dead wife, secretly serving as the “wellness counselor” Ms. Casey on the Severed Floor.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Haunting duality as Lachman shifts between compassionate counselor and survivor with a secret agenda.

Favorite Things: Meditation retreats, ethnographic fieldwork, and classical violin performance.

Notable Works: Altered Carbon, Jurassic World: Dominion.

Michael Chernus as Ricken Hale

DOB: August 8, 1977

Bio: A Juilliard alum and Pulitzer-nominated playwright, Michael Chernus brings stage-honed sensitivity to screen roles.

He’s been lauded for Orange Is the New Black and appeared in The Good Wife, and voice-acted animated adaptations of his own short plays.

Role: Ricken Hale, bestselling self-help guru whose philosophies underpin Lumon’s corporate dogma.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Measured calm that cracks under scrutiny, revealing the cost of Ricken’s own severance.

Favorite Things: Writing motivational verse, early-morning walks, and morning coffee-shop poetry readings.

Notable Works: Orange Is the New Black, Spider-Man: Homecoming.

John Turturro as Irving Bailiff

DOB: February 28, 1957

Bio: Brooklyn-born John Turturro trained under Sanford Meisner before becoming a Scorsese regular (Do the Right Thing, The King of Comedy).

A two-time Tony nominee, he’s also a screenwriter and director of indie hits like Mac and Romance & Cigarettes.

Role: Irving Bailiff, the gentle Macrodata Refiner whose personal quest for his lost memories sparks an unexpected rebellion.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Poignant grace and quiet defiance as Irving leverages art and humor to outwit Lumon.

Favorite Things: Model-train building, crooning Sinatra tunes, and experimental film-making.

Notable Works: The Batman, The Big Lebowski, Barton Fink.

Christopher Walken as Burt Goodman

DOB: March 31, 1943

Bio: A veteran of stage and screen, Walken studied at Brooklyn’s High School of Performing Arts before earning an Academy Award for The Deer Hunter.

He’s known for his idiosyncratic rhythms, and alongside film work (Pulp Fiction, Catch Me If You Can) he’s a celebrated Broadway musical performer.

Role: Burt Goodman, head of Optics & Design, whose artistic soul becomes a catalyst for Lumon’s internal revolt.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: Warmth and whimsy—Walken’s signature blend of eccentricity and heart—that sparks hope in a sterile world.

Favorite Things: Abstract painting, tap-dance improvisation, and storytelling at NYC cabarets.

Notable Works: The Deer Hunter, Pulp Fiction, Catch Me If You Can.

Patricia Arquette as Harmony Cobel / Mrs. Selvig

DOB: April 8, 1968

Bio: Hailing from Chicago’s vibrant theater scene, Arquette won an Oscar for Boyhood and an Emmy for Escape at Dannemora.

She’s a feminist activist, co-founder of the Time’s Up movement, and has directed documentaries on women’s issues.

Role: Harmony Cobel, devout Lumon manager whose faith in the severance doctrine is tested by unexpected cracks in the system.

Seasons & Episodes: 1–2, 19 episodes

What to Expect: A searing transformation from righteous zeal to wrenching self-examination.

Favorite Things: Vintage pinball, competitive Scrabble tournaments, and family-style New Orleans jazz.

Notable Works: Boyhood, Medium, Escape at Dannemora.

Yul Vázquez as Peter “Petey” Kilmer

DOB: March 18, 1965

Bio: Cuban-American musician-turned-actor, Vázquez studied at Julliard and co-founded the rock band Fascination.

He’s graced film (Runaway Bride, American Gangster) and TV (The Tick) with his warm charisma.

Role: Petey Kilmer, the first Severed employee to opt for reintegration, whose paranoia and bravery trigger Lumon’s unraveling.

Seasons & Episodes: 1–2, key episodes in both

What to Expect: Heartbreaking tension as Petey grapples with post-severance trauma and leads the charge to expose Lumon.

Favorite Things: Salsa dancing, vintage guitar collecting, and family salsa cook-offs.

Notable Works: Captain Phillips, Russian Doll.

Michael Cumpsty as Doug Graner

DOB: February 26, 1960

Bio: English stage ace and screen character actor, Cumpsty trained at London’s Royal Academy of Dramatic Art.

He’s a Tony nominee for Ah, Wilderness! and has appeared in The Visitor, Eat Pray Love, and numerous Broadway plays.

Role: Doug Graner, Lumon’s unflappable Head of Security on the Severed Floor, enforcing every rule with steely precision.

Seasons & Episodes: Season 1, 8 episodes

What to Expect: A formidable, unyielding presence whose loyalty to Lumon raises profound questions about duty and conscience.

Favorite Things: Fencing, collecting first-edition detective novels, and attending classical theatre festivals.

Notable Works: The Ice Storm, Eat Pray Love.

More Actors

• Nikki M. James as Alexa

• Sydney Cole Alexander as Natalie Kalen

• Nora Dale as Gabby Arteta

• Mark Kenneth Smaltz as Judd

• Donald Webber Jr. as Patton

• Grace Rex as Rebeck

• Annie McNamara as Danise

• Claudia Robinson as Felicia

• Karen Aldridge as Asal Reghabi

• Michael Siberry as Jame Eagan 

Season 2 New Additions (2025)

• Sarah Bock as Eustice “Miss” Huang

• Gwendoline Christie as Lorne

• Merritt Wever as Gretchen George

• Robby Benson as Dr. Mauer

• Sandra Bernhard as Cecily

• Ólafur Darri Ólafsson as Mr. Drummond

• Bob Balaban as Mark W.

• Alia Shawkat as Gwendolyn Y.

• Stefano Carannante as Dario R.

• John Noble as Cecil Fields

• James LeGros as Hampton

• Jane Alexander as Celestine “Sissy” Cobel

• Adrian Martinez as Mr. Saliba

• Keanu Reeves – Voice cameo in an animated video titled “Lumon is Listening” shown to the Macrodata Refinement department.  

FAQ

Is there a Season 3?

Apple TV+ has officially announced Season 3 of Severance.

While no release date has been set, it’s anticipated to premiere in mid to late 2026. GIZMODO

Where can I watch Severance?

Severance is available exclusively on Apple TV+.

New episodes are released weekly, and the platform offers a seven-day free trial for new subscribers.

Where is Severance filmed?

The primary filming location for Severance is Bell Works in Holmdel, New Jersey.

This repurposed office complex, formerly the Bell Labs headquarters, provides the show’s distinctive and surreal corporate setting. BUSINESS INSIDER

Conclusion

Severance is more than just a psychological thriller—it’s a masterclass in storytelling that challenges our perception of work, identity, and control.

With its bold concept, meticulous visual design, and emotionally charged performances, the series stands out as one of the most original shows of its time.

Whether you’re drawn in by the sci-fi premise or stay for the emotional depth, Severance leaves a lasting impact.

As the mysteries of Lumon Industries continue to unfold, one thing is certain: this is television at its most thought-provoking and powerful.