Ella Purnell’s Fallout Replacement Sweetpea Is a Cult Classic Thriller in the Making

Ella Purnell is rapidly establishing herself as a standout TV actress. She has a natural talent and charisma that allows her to convincingly portray a wide range of characters, and she hasn’t been limited to playing just one type, even with her growing popularity. While she’s well-known for leading roles in shows like the Amazon Prime Video series and the gripping Showtime series Yellowjackets, there’s another one of her projects that deserves attention.

The show Sweetpea, initially described as a gender-swapped take on Dexter, doesn’t quite match that show’s style. However, its renewal for a second season is bringing renewed focus to actress Sofia Purnell and her ability to play a wide range of characters – from charming and lighthearted to dark and complex.

Sweetpea Shows Ella Purnell’s Range

Sweetpea is a dark comedy, a genre Purnell often explores, but it’s her most unsettling work yet – darker in both obvious and nuanced ways. The story centers on a young woman who has always been bullied and struggles with feeling like an outsider.

But when Rhiannon finds a way to get attention, things take a disturbingly dark turn, and the actress playing her, Purnell, expertly portrays both sides of the character. Like Lucy in Fallout, Rhiannon starts as a fragile and easily overlooked woman. She’s ignored at work and in her personal life, and her feelings of insignificance are made worse when her father – the only person who ever cared for her – passes away.

People on the street seem to look right through Rhiannon, as if she isn’t even there. It’s unclear if this is because she lacks confidence, or if it’s simply how others actually see her. But when a former bully reappears, Rhiannon takes a bold step, and something changes within her.

After venturing out of the safety of the bunker in Fallout, Lucy quickly learns how brutal and unforgiving the world has become, forcing her to become tougher. However, Rhiannon’s story is even darker and more troubled. She experiences moments where she completely loses control, suffers from intense mental breakdowns, and seems to disconnect from reality.

These scenes showcase Purnell’s ability to handle challenging roles. With Sweetpea, she’s establishing herself as a versatile actress, much like Margot Robbie, Emma Stone, and Anya Taylor-Joy, who consistently deliver subtle and complex performances.

In Sweetpea, Ella Purnell explores a much more complex and unpredictable character than her role as Lucy in Fallout. While Lucy begins as a hopeful person who becomes disillusioned, she ultimately remains true to herself. Sweetpea, however, allows Purnell to delve into a character with far more moral grey areas and emotional instability.

Rhiannon is different – she’s a complex and somewhat troubled character from the start, shaped by a challenging upbringing and a possible inner darkness. She feels resentment, and when she regains her strength, that resentment comes to the surface.

While smaller in scale than her more famous work, Purnell’s part in Sweetpea could be a turning point in her career, establishing how she’s seen as an actress. The show’s first season has been well-received and is building a dedicated fanbase, though it’s unlikely to become a mainstream, hugely popular hit.

While Fallout gained a lot of attention, Sweetpea truly showcases Purnell’s skills with a more refined and imaginative approach. This could explain why she’s expressed a preference for projects like Sweetpea and plans to focus on similar roles in the future.

Sweetpea Proves Purnell’s Long-Term Viability

High-quality television often relies on strong performances from well-known actors. Kaley Cuoco became famous for her role as Penny on the sitcom The Big Bang Theory, but many viewers thought that was all she could do. However, her lead role in the HBO Max series The Flight Attendant—a dark, comedic, and suspenseful mystery—showed she’s a versatile actress capable of much more than just delivering sarcastic lines.

Before starring in Breaking Bad, Bryan Cranston was largely known for comedic roles. Similarly, Elisabeth Moss showed incredible range beyond her strong character in Mad Men, as demonstrated by her performance in The Handmaid’s Tale. Now, audiences are realizing that Purnell deserves to be recognized for similar versatility.

Purnell’s recent roles, including the film Sweetpea, demonstrate her ability to lead both big-budget action movies and intense, suspenseful thrillers, suggesting a promising future for her career. Her three most notable projects really highlight her range as an actress.

Lucy from Fallout is a likeable and unique character who’s become more resilient through tough experiences. In Yellowjackets, Jackie is portrayed as both kind and secretly controlling, and Purnell has to make her appear truly threatening when she appears as a vision later in the show. Rhiannon in Sweetpea transforms from a shy, quiet person into a dangerous killer, giving the actress a chance to showcase her impressive acting skills in one role.

The show is gaining popularity, and helping audiences recognize Purnell as a remarkably skilled and complex actor – something her previous work hasn’t fully showcased. If the series continues to build momentum, particularly with a potential second season, she could become a leading star of dark comedy dramas in the current streaming landscape.

The show’s main character is similar to Dexter Morgan – she targets people who have committed terrible acts. While no one deserves to be killed, we understand and even feel for her after she finally decides to take matters into her own hands. Seeing just how badly she’s been treated makes us sympathize with her, and even helps us understand her actions.

I was really captivated by Purnell’s performance. She plays a woman you genuinely feel for, and you’re hoping she finds a better path, even though the way she changes involves some seriously dark and violent choices. It’s fascinating because as Rhiannon gains confidence, she also becomes more unsettling. Honestly, the hardest part as a viewer is trying to reconcile those two sides of her – the sympathetic woman and the increasingly sinister one.

Many actors might play this character as someone simply acting fragile, but Purnell makes you believe Rhiannon has genuinely lost herself in the thrill of finally being seen. She captures Rhiannon’s confusion about why she’s getting attention, while also showing her newfound strength. Before the show aired, Purnell shared that she embraced the idea of showing vulnerability – even ‘ugliness’ – to bring the character to life.

It’s the Smaller Roles That Count

Many people recognize Ella Purnell from her recent work in Fallout, the popular TV series based on the video game, which also stars Walton Goggins. But she first gained significant attention from American viewers with her role in Yellowjackets.

I was really surprised by this role – it showed a completely different side of her, but honestly, it felt more like a way to build up the stories of the other characters. Of course, she’s also been in some amazing movies like Maleficent, Miss Peregrine’s Home for Peculiar Children, Churchill, and Army of the Dead.

Many people recognize her as the voice of Jinx from the animated series Arcane and Gwyndala from Star Trek: Prodigy. However, her performance in Sweetpea really showcases her background as a classically trained actor and the dedication she’s put into her skills. Above all,

Though not yet a huge phenomenon, the show Sweetpea is quickly gaining a dedicated following. Critics still rave about its first season – giving it an 88% rating on Rotten Tomatoes more than a year after it first aired – praising the story, surprising turns of events, acting, and fast-moving plot. It’s a short, six-episode season that’s easy to watch all at once.

Filming for the second season is finished, and some new actors have joined the cast. These include Tamsin Greig, known from Sexy Beast, Rish Shah from Overcompensating, Taj Atwal (Line of Duty), and Jenny Walser (Heartstopper).

By the end of the first season, Rhiannon learned to control her anger, similar to how Dexter did, and developed her own, somewhat questionable, set of rules. As the story continues, she faces ongoing dangers from multiple sources: Marina is still trying to reveal her secrets, her sister is determined to sell her home, and a new killer is imitating her methods, putting her life at risk.

If the story develops Rhiannon into a complex character—similar to Dexter Morgan from the show Dexter, rather than the version seen in Dexter: Original SinSweetpea could become a truly memorable and impactful thriller. This role has the potential to be more than just another credit for Purnell; it could be the defining, independent-style role of her career, setting her apart from her mainstream work.

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2026-03-07 02:09