When Disney first announced they were doing a live-action The Little Mermaid, the internet basically went into a tailspin over the casting. Everyone was talking about Halle Bailey, but there was this quiet, massive question mark hovering over the guy who’d be playing the human lead. Then came the name: Jonah Hauer-King. Honestly, if you weren't a fan of BBC period dramas, you probably had to Google him.
He was the "indie" choice.
While pop titans like Harry Styles were reportedly in the mix—and turned it down to chase "darker" roles—Hauer-King stepped into the boots of Disney's most famously "bland" prince. But here’s the thing: he didn't just play Prince Eric. He fixed him.
The Prince Eric Problem (And How Jonah Hauer-King Solved It)
Let’s be real for a second. In the 1989 original, Eric is... fine. He’s a hunk with a dog who plays the flute. He’s essentially a plot device with great hair. You don’t really know why Ariel is obsessed with him other than the fact that he’s the first guy she sees and he doesn't look like a crab.
Jonah Hauer-King changed that dynamic entirely.
Working with director Rob Marshall, Hauer-King brought a "kindred spirit" energy to the role. In this version, Eric isn't just a royal waiting to inherit a throne; he’s an outsider in his own castle. He’s a collector. He has a room full of artifacts from other cultures—sound familiar? It’s a direct mirror to Ariel’s grotto.
By making Eric an explorer who feels suffocated by his "four walls," Hauer-King gave the romance a foundation of actual compatibility. They aren't just two pretty people staring at each other. They’re two nerds who want to travel.
That Seven-Month Audition Gauntlet
You might think landing a Disney role is a quick "yes" if you look the part. For Jonah, it was a grueling seven-month marathon. He did countless self-tapes, tried different accents, and eventually flew out for a screen test with Halle Bailey.
The chemistry was instant.
He’s mentioned in interviews that they were both "newbies" to a production of this scale, which helped them bond. It’s that genuine friendship that translates into those silent scenes on the island. When Ariel can’t speak, Hauer-King has to do the heavy lifting with his eyes. It’s subtle, but it works.
Wild Uncharted Waters: The Song Eric Needed
One of the biggest additions to the 2023 film was Eric’s solo, "Wild Uncharted Waters." Written by Lin-Manuel Miranda and Alan Menken, this power ballad did something the original never attempted. It gave us Eric’s internal monologue.
Hauer-King actually has a musical background—he was in an indie rock band called Rova back in his teens—and he brings a raw, slightly desperate edge to the vocals. He isn't singing like a polished Broadway star; he sounds like a guy who is actually losing his mind over a girl who saved his life.
The lyrics focus on his "thirst for the vast world." It's not just a love song; it’s an identity song.
The Physical Transformation
He didn't just show up and put on a white shirt.
- Weight Gain: He spent three months in 2020 training to put on muscle so he’d actually look like a sailor who "swings around ropes all day."
- The Skill Set: He had to learn to scuba dive, ride horses, row boats, and even operate a horse carriage.
- The Setback: Production shut down on a Friday in March 2020, just days before they were supposed to start filming. He had to maintain that "Prince Eric physique" for seven months at home with a set of weights his trainer dropped off.
Beyond the Castle: Who is Jonah Hauer-King?
The guy has layers. Born in London to an American mother (theatre producer Debra Hauer) and a British father (restaurateur Jeremy King), he holds dual citizenship. He’s actually quite academic, too. He graduated from Cambridge University with a degree in theology and religious studies while he was already landing acting gigs.
He’s joked that he was never going to be a priest or a rabbi, but those studies probably helped him dive into the complex "outsider" themes of his later roles.
Since The Little Mermaid, he’s moved into much heavier territory. If you want to see his range, look at The Tattooist of Auschwitz. He plays Lale Sokolov, a Jewish prisoner in the concentration camp. It’s a haunting, transformative performance that is worlds away from the sunny shores of the Caribbean. For Jonah, this was personal; his own maternal grandparents were Polish Jews who fled the war in the 1930s.
Why He’s the Blueprint for Future Remakes
A lot of people complain that Disney live-action remakes are "soulless." Usually, that’s because the characters feel like cardboard cutouts of the originals.
Jonah Hauer-King avoided this by leaning into vulnerability. His Eric is sensitive, empathetic, and—crucially—a bit of a mess. He doesn't have it all figured out. In a world of "perfect" princes, that human fallibility is what made audiences actually care this time around.
How to Follow Jonah Hauer-King's Career Now
If you’re a fan of his portrayal of Prince Eric, you shouldn't just stop at the Disney+ repeat viewings. Here is how to see more of his work:
- Watch "World on Fire": This is where he really cut his teeth. He plays Harry Chase, a translator caught in the chaos of WWII. It shows the "dashing lead" energy he eventually brought to Disney.
- Stream "The Tattooist of Auschwitz": If you want to see his dramatic depth, this is the one. It’s a tough watch, but it proves he isn't just a "pretty face" casting choice.
- Look for "Doctor Who": As of 2025/2026, he’s joined the Whoniverse as Conrad Clark. It's a great way to see him handle the sci-fi/fantasy genre with a different tone.
- Check out "A Dog's Way Home": If you want something lighthearted, this 2019 film features him as the lead human, Lucas. It’s pure comfort viewing.
Jonah Hauer-King took a role that could have been a career-ending cliché and turned it into a masterclass on how to modernize a classic. He didn't just play a prince; he made Eric a human being.