Honestly, it’s been a minute since Zac and Mia first hit our screens on that now-defunct go90 app. If you were a fan of the YA "sick-lit" era—think The Fault in Our Stars or Five Feet Apart—you probably remember the gut-wrenching, through-the-wall tapping between two teenagers in an oncology ward. The show was gritty. It was messy. Most importantly, the Zac and Mia cast had this raw chemistry that made a low-budget web series feel like a prestige HBO drama.
Watching it back in 2026, it’s wild to see where everyone landed.
Some of the actors stayed in the Hollywood grind, while others leaned into the digital creator world that birthed them. It wasn't just a "teen show." It was a launchpad. The series even snagged a few Daytime Emmys, which is pretty impressive for a show that lived on a Verizon-owned streaming service that vanished shortly after.
The Leads: Anne Winters and Kian Lawley
Let's talk about the heavy hitters first. Anne Winters, who played the fierce and often deeply frustrated Mia Phillips, was basically the soul of the show. She didn't just play a "girl with cancer." She played a girl who was angry about having cancer, and that nuance won her a Daytime Emmy for Outstanding Lead Actress in 2018.
Anne has stayed incredibly busy. You probably saw her as Chloe in 13 Reasons Why, or maybe you caught her in the sci-fi comedy The Orville. She’s got this range where she can go from a mean girl to a vulnerable patient in about two seconds. In 2026, she’s still a mainstay in the indie film circuit and has been vocal about how the physical transformation for Mia—shaving her head and losing weight—changed her perspective on acting forever.
Then there’s Kian Lawley.
Kian was interesting because he came from the YouTube world. Back then, "influencers" trying to act was usually a recipe for a cringe-fest. But Kian actually brought a quiet, statistical nerdiness to Zac Meier that felt authentic. He wasn't playing himself. He was playing a kid who used math to cope with the fact that his body was failing him.
His career hit a massive speed bump right as the show was peaking. If you remember the controversy in 2018, he was fired from The Hate U Give after some old videos surfaced. It was a huge moment in "cancel culture" history. However, he didn't just disappear. He leaned back into his YouTube roots with Jc Caylen and eventually worked his way back into acting roles, proving that the Zac and Mia cast had more staying power than people expected.
The Supporting Players: Who You Might Have Missed
The oncology ward wasn't just about the two leads. The supporting cast filled in the gaps of what life is actually like for the families of terminal or chronically ill kids.
- Alexis G. Zall (Bec): Another digital native, Alexis played Zac’s sister. She’s continued to be a massive voice for the LGBTQ+ community and has shifted more into writing and directing her own projects.
- Tanner Stine (Evan): He played the "perfect" guy in Mia’s old life. Tanner has since popped up in Impulse and The Runaways.
- Keli Daniels and Sabrina Revelle: They played the moms, providing the emotional anchors that made the hospital scenes feel claustrophobic and real.
Why the Cast Felt Different
Most teen dramas cast 25-year-olds with perfect skin to play 16-year-olds. Zac and Mia felt different. Maybe it was the lighting or the fact that they weren't afraid to make the actors look genuinely sick. The cast had to handle heavy themes of mortality while also doing the "will-they-won't-they" dance of a standard romance.
It worked.
The chemistry between Anne and Kian was so palpable that rumors about them dating in real life swirled for years. They always denied it, maintaining they were just "really good friends," but that's what every iconic TV couple says, right?
What Happened to the Show Itself?
If you try to find Zac and Mia today, it’s a bit of a scavenger hunt. After go90 folded, the series moved over to Hulu for its second season. That second season took them out of the hospital and into the "real world," which honestly was way more heartbreaking. Seeing them try to be "normal" teenagers while dealing with the trauma of what they'd been through was a masterclass in YA writing.
The show was based on the novel by A.J. Betts, and while the book ends on a somewhat ambiguous note, the series gave us a bit more closure. Not a "happy ever after"—because that’s not how cancer works—but a "happy for now."
Takeaways for Fans in 2026
Looking back at the Zac and Mia cast, there are a few things that still stand out.
First, the transition from YouTuber to "Serious Actor" is possible, but it requires the right project. Kian Lawley proved that. Second, the "sick-teen" genre doesn't have to be exploitative. When you have a cast that treats the material with respect, it becomes a story about resilience rather than just tragedy.
If you’re looking to dive back into the world of these actors:
- Check out Anne Winters' recent work on streaming platforms; she's consistently the best part of everything she’s in.
- Watch the behind-the-scenes vlogs from the 2017-2018 era on YouTube. They show just how much work went into the prosthetics and the emotional prep for the hospital scenes.
- Track down Season 2 on Hulu if it's still available in your region. It's often overlooked but contains some of the best performances from the entire cast.
The show might be nearly a decade old, but the performances are timeless. They captured a specific kind of teenage loneliness that still resonates today.
Next Steps for Content Hunters: If you want to keep following the cast, your best bet is following Anne Winters on Instagram for her upcoming project announcements or keeping an eye on Kian Lawley’s channel for more long-form content. For those interested in the medical realism of the show, A.J. Betts' original novel provides even more clinical detail that the show had to trim for time.
