When a show as big as Peaky Blinders swaps an actor mid-run, it usually feels like a glitch in the Matrix. You’re watching, and suddenly a character has a whole new face. It’s jarring. Honestly, usually, it’s a disaster. But when Daryl McCormack stepped into the boots of Isaiah Jesus in Season 5, something weird happened. Most people didn't even notice at first. Then, once they did, they realize he actually fit the darkening tone of the Shelby empire better than anyone expected.
Isaiah Jesus isn't just some background muscle. He’s the son of Jeremiah Jesus, the street preacher who fought alongside Tommy Shelby in the trenches of WWI. That lineage matters. By the time Daryl McCormack took over in 2019, the show was shifting from small-time Birmingham scuffles to high-stakes political intrigue and the looming shadow of fascism.
The transition wasn't just about a scheduling conflict with the original actor, Jordan Bolger. It was a tonal pivot. McCormack brought a certain "quiet intensity" that the later seasons desperately needed.
The Isaiah Jesus Evolution: From Bolger to McCormack
Jordan Bolger played Isaiah from Season 2 through Season 4. He was great—he had this youthful, almost cocky energy. He was the guy Michael Gray went to the pub with to get his first taste of trouble. But by Season 5, the "Peaky Boys" weren't just boys anymore. They were becoming the establishment, even if they were still gangsters at heart.
Enter Daryl McCormack.
He didn't try to mimic Bolger’s performance. Smart move. Instead, he leaned into a more mature, battle-hardened version of Isaiah. You’ve probably noticed that in Seasons 5 and 6, Isaiah isn't just hanging out in the Garrison. He’s leading missions. He’s Arthur’s lieutenant during the Hayden Stagg confrontation. He’s the one holding the line when the Shelbys are falling apart from the inside.
McCormack has talked about this transition before. He actually binged the entire series in about three weeks before he started shooting. Imagine that—watching Cillian Murphy's cheekbones for 30 hours straight and then having to stand next to him on set. He admitted to some serious imposter syndrome. But the suits helped. He famously said that putting on those tailored 1920s threads makes you feel "instantly like a boss."
Why the Recast Was Necessary
It wasn’t a creative "firing." Jordan Bolger had a scheduling clash with The 100, and in the world of TV, the show must go on.
But looking back, McCormack’s Isaiah felt more like a "soldier" than the earlier version. In Season 6, his chemistry with Ada Thorne (Sophie Rundle) was something fans picked up on immediately. There was this "Gold" scene where the sparks were basically flying off the screen. It gave Isaiah a layer of complexity beyond just being "the preacher's son who's good with a gun."
Daryl McCormack’s "New Peaky" Energy
What makes McCormack’s portrayal stand out is the restraint. In a show where everyone is chewing the scenery (looking at you, Arthur), Isaiah stays grounded. He’s a Black man in 1930s Britain navigating a gang that is theoretically loyal but exists in a deeply racist society.
McCormack plays that nuance perfectly. He doesn't have to shout to be the most dangerous person in the room.
Basically, he represents the "New Guard" of the Peaky Blinders. While the older generation is rotting away from PTSD and opium, Isaiah and the younger recruits are the ones actually keeping the business running. He’s the bridge between the old Small Heath days and the global Shelby Company Limited.
Will Isaiah Jesus Be in the Peaky Blinders Movie?
This is the big question everyone is asking in 2026. The Peaky Blinders movie, officially titled The Immortal Man, is slated for a March 2026 release. We know Cillian Murphy is back. We know Barry Keoghan and Rebecca Ferguson have joined the cast. But what about our man Daryl?
In recent interviews, McCormack has been notoriously cagey. He’s busy. Since Peaky, his career has absolutely exploded. You’ve seen him in:
- Good Luck to You, Leo Grande (where he held his own against Emma Thompson).
- Bad Sisters on Apple TV+.
- Twisters, the massive 2024 blockbuster.
- The upcoming Knives Out 3 (Wake Up Dead Man).
The reality? The movie is supposed to focus on a "new generation" of Peaky Blinders during World War II. It would be a massive missed opportunity if Isaiah isn't there to lead them. He is one of the few characters left with a direct link to the original "Small Heath Rifles" through his father, Jeremiah.
Fans are speculating that Isaiah might finally move from "trusted lieutenant" to a core leadership role, especially with the rumors that some older cast members might not return.
What You Can Learn from Daryl McCormack’s Career Path
If you’re looking at McCormack’s trajectory, there’s a lesson in how to handle a "replacement" role. Most actors would be terrified to step into an established fan-favorite character. He didn't blink.
- Don't Copy, Innovate: He brought a different physical presence to the role. He’s taller, broader, and carries himself with a different kind of weight than Bolger did.
- Respect the Lore: He did his homework. Binging the show wasn't just for fun; it was to understand the rhythm of Steven Knight’s dialogue.
- Use the Momentum: He used the visibility of Peaky Blinders to jump into indie prestige films. He didn't get "stuck" being a TV gangster.
Honestly, Daryl McCormack is probably the biggest breakout star from the later seasons of the show. While we all love the Shelbys, McCormack proved that you can join a legendary cast late in the game and still leave a permanent mark.
Next Steps for Fans
If you want to catch up before The Immortal Man hits theaters in March 2026, you should re-watch Season 6, specifically focusing on the Hayden Stagg mission in Liverpool. It’s the best showcase of McCormack’s Isaiah—watch his eyes during the confrontation. He’s not just a background character anymore; he’s the future of the franchise. Keep an eye on the official Netflix trailers dropping this month for a glimpse of the flat cap’s return.