Adam Scott stars as Mark Scout, Britt Lower plays Helly R, and Zach Cherry is Dylan George in Apple TV+’s Severance.
Main cast
- Mark ScoutAdam ScottSeasons 1-2Main
- Helly RBritt LowerSeasons 1-2Main
- Dylan GeorgeZach CherrySeasons 1-2Main
- Seth MilchickTramell TillmanSeasons 1-2Main
- Devon Scout-HaleJen TullockSeasons 1-2Main
- Ms. Casey / Gemma ScoutDichen LachmanSeasons 1-2Main
- Harmony CobelPatricia ArquetteSeasons 1-2Main
- Ricken HaleMichael ChernusSeasons 1-2Main
- Irving BailiffJohn TurturroSeasons 1-2Main
- Burt GoodmanChristopher WalkenSeasons 1-2Main
Supporting cast
- Kier EaganMarc GellerSeasons 1-2Supp
- Miss HuangSarah BockSeasons 2Supp
- Petey KilmerYul VazquezSeasons 1Supp
- Doug GranerMichael CumpstySeasons 1Supp
- Natalie KalenSydney Cole AlexanderSeasons 1-2Supp
- FeliciaClaudia RobinsonSeasons 1-2Supp
- JuddMark Kenneth SmaltzSeasons 1-2Supp
- Mr. DrummondÓlafur Darri ÓlafssonSeasons 2Supp
- Asal ReghabiKaren AldridgeSeasons 1-2Supp
- Jame EaganMichael SiberrySeasons 1-2Supp
No matches — try another name.
About this cast
Severance is a 2022 Apple TV+ series with two seasons. The lead cast includes Adam Scott as Mark Scout, Britt Lower as Helly R, Zach Cherry as Dylan George, Tramell Tillman as Seth Milchick, Patricia Arquette as Harmony Cobel, and Dichen Lachman as Ms. Casey/Gemma Scout.
Cast FAQs
Who plays Mark Scout in Severance?
Adam Scott plays Mark Scout.
Who plays Helly R in Severance?
Britt Lower plays Helly R.
Who plays Harmony Cobel in Severance?
Patricia Arquette plays Harmony Cobel.
Who plays Gemma in Severance?
Dichen Lachman plays Ms. Casey/Gemma Scout.
How many cast members are in Severance?
There are 20 cast members in total.
Sources: IMDb · IMDb · Apple TV+ · TV Guide · Wikipedia · Updated June 2026