Gemma Scout, Ms. Casey, Cold Harbour, 25 Innies—there are more questions than answers when it comes to Dichen Lachman’s Severance arc this season. So, what’s her hot take on Apple TV+’s most-watched show? Wonderland DM’s her to find out…

[Contains spoilers of Severance Season 2]

If Dichen Lachman doesn’t win an Emmy for her gut-wrenching performance as Ms. Casey/Gemma’s many innies in Severance’s season finale, we might just go and get severed ourselves. No, seriously.

To recap: this season of the Ben Stiller produced phenomenon sees Mark S. [played by Adam Scott] discover that Ms. Casey is actually his outie’s wife, Gemma Scout, who was believed to have died in a car crash. Then, Gemma—now Lumon’s resident lab rat on the testing floor—reveals herself as Cold Harbour’s focal point, splitting her consciousness into, what’s revealed as, 25 different innies. Yep, take a second. As the season wraps up, Gemma’s fate hangs in the balance: Mark S. swoops her out of the testing floor and away from Lumon’s heart, only to leave her, well, banging on the door while he runs off with his innie sweetheart, Helly R. And just like that, the fate of Lumon and its employees is left up in the air.

But amidst all the jaw-dropping revelations and even quirkier subplots, it’s Dichen Lachman’s performance that truly stole the spotlight this season. Her ability to craft and embody Gemma’s fractured existence in the span of one episode—and make her grief, suffering, anger, and confusion so palpable—turned the finale into a nerve-wracking,  every-tissue-in-the-flat-is-now-sopping-wet-in-my-hand, emotional endurance ride. In the middle of her press tour, she took 15 minutes out of her packed schedule to DM us some of her thoughts…

Severance has become the most-watched Apple TV+ show to date, prompting viewers to reflect on deep themes ranging from human morality to the nature of existence. What complex questions from the show have kept you up at night?

Dichen Lachman: One of the questions that’s haunted me the most is: ‘What parts of ourselves are we willing to surrender in the name of comfort or productivity?’ Severance really taps into that eerie possibility of segmenting our pain or trauma and whether doing so is freedom or just another kind of prison. It’s made me rethink identity, memory, and the value of suffering in shaping who we are.

The reveal of Ms. Casey’s true identity was a pivotal moment this season. When did you first learn that she was actually Gemma, and what was your initial reaction to that storyline?

DL: I found out pretty early on in a phone call with Ben [Stiller] before I had the part. He was reluctant to tell me because no one knew if I was going to be able to do it at the time. It was a quiet reveal in the most Severance way. I felt honoured to carry that arc forward.

Do you think of them as two halves of the same person, or separate entities? How did you approach playing them differently, and was there any particular material you drew from for inspiration?

DL: To me, they’re fragments of the same soul, separated by design but aching to reconnect. Ms. Casey is restrained but so curious… Gemma has more depth in terms of a life lived, a history… she has knowledge. I drew inspiration from [psychiatrist] Carl Jung, [German-born spiritual teacher and self-help author] Eckhart Tolle…The physicality of each one helped me a lot. The subtle differences in posture, cadence, and breath were key.

In the finale, Mark’s innie and outie communicate through a camcorder. How do you imagine a similar interaction playing out between Ms. Casey and Gemma, and what would they admit to each other?

DL: I think it would be quiet at first. Like looking into a mirror that remembers more than you do. Then I think it would be quite awkward and funny.

Gemma/Ms. Casey has been a pivotal yet mysterious presence throughout the series, often remaining off-screen. How does it feel to have your character finally becoming more understood by fans?

DL: I’ve loved inhabiting the mystery, but watching the audience connect has been amazing. She’s gone from a symbol to a person… and seeing fans empathise with her, with them, is fantastic.

Cold Harbour is finally revealed in this episode—‘the clusters are tempers, the building blocks of her mind.’ Essentially, they are constructing the files that make up Gemma’s consciousness to create her 25 innies. How do you think fans will react to this storyline?

DL: I expect Reddit will be very busy!

Ben Stiller directed many episodes—what was it like working with him? Did he give you any specific notes on playing Ms. Casey/Gemma, or did you bring any personal touches to the characters that weren’t in the script?

DL: Ben is incredibly detail-oriented but also collaborative. He trusts actors to explore, which is rare and generous. His notes were often subtle and we would discover things together. I enjoy working with him very much. He would sometimes play music before a scene…which was the first time I experienced that on set. He has such a creative mind and is so nurturing of talent. I feel very lucky to be able to work with him.

The chemistry between you and Adam Scott is crucial to the emotional core of the show. What was it like developing that dynamic on set, and how did it evolve leading up to the reunion scene between your characters in the finale? What was the experience of filming that moment like?

DL: Adam is so present, it makes everything feel alive. That final scene was electric. So much history in a glance. We both felt it… the weight of a love that has been forged by joy, grief, happiness… ups and downs… everything that makes an enduring relationship special and worth fighting for.

The world of Severance is so meticulously crafted—from the eerie Lumon offices to its unsettling corporate rituals. What aspect of the Severance universe unsettles you the most?

DL: The way people accept the system… the construct, without too many questions. It’s reflective of real-world complacency. It’s a little close to home in a way. Don’t you think?

From the number 7 to erratic elevator doors, were you aware of all the ‘Easter eggs’ referenced whilst filming, or is this something you learnt as you watched the series back?

DL: Oh, I definitely learnt a lot after the fact! The number of things I missed on set is almost embarrassing. I was just really focused on the character. The props department deserves an award.

Have you seen the Ms Casey internet memes? How do you feel about being an internet phenomenon?

DL: I have! And they’re amazing. Some are hilarious, some strangely profound. I never imagined Ms Casey would become meme material, but hey, I’ll take it. It’s a kind of love, right?

If you had to have dinner with three characters from Severance, who would they be and what would you ask them?

DL: I’d invite Irving, Helly, and Milchick. Irving because he’d bring poetry, Helly for fire, and Milchick for dance… also because I want to know what’s really going on.

Is there a Severance group chat, and what was the last message sent in it?

DL: We have an iMessage thread. Mostly it’s just sharing love for each other’s work. It’s a very supportive group of people… real gems.

Season 3 has been confirmed! If you could write Gemma’s fate in Season 3, what would you want to see happen?

DL: I won’t speculate [laughs]. As far as Gemma‘s fate, maybe she opens up a flower shop… but seriously, I will continue to live in the unknown and just stay excited. I trust that Dan Erickson will do an incredible job.

Words – Ella Bardsley