He left the nation in tears when his character was killed off on Christmas Day 2002.
But ex-EastEnders star Jack Ryder, 37, has sent fans into a tailspin, after unveiling his suave greyed look on Holby City.
Ditching his famous blonde curtains in favour of a more greyed look, Jack can be seen in a preview ahead of his debut on the drama next week, 16 years after his character Jamie Mitchell’s death.
New look: Ex-EastEnders star Jack Ryder has sent fans into a tailspin as he unveiled his suave new look in the Holby City trailer
Jack will take on the role of newcomer Evan Crowhurst in his first scenes next week, and the preview hints that he will immediately clash with Dom, played by David Ames, who attacks him in dramatic scenes.
Evan will appear as the boyfriend of newcomer Chloe Goddard, so it remains to be seen what viewers can expect from his character.
Even before his first scenes have aired, viewers have already gone wild for Jack’s transformation, taking to Twitter in bewilderment that he is the man who played Jamie all those years ago.
New face: Jack will make his first Holby appearance next week as newcomer Evan Crowhurst, who is set to immediately butt heads with David Ames
So different! 16 years after leaving EastEnders, Jack is sported a far more greyed appearance, worlds away from Jamie’s famous blonde hair
Wow! Following the trailer’s release, viewers took to Twitter in bewilderment, with some stunned that it was actually Jack in the preview
New addition: Jack made a brief appearance in the Spring 2019 trailer for the medical drama, though details were vague around the nature of his character
One fan wrote: ‘Who’s that bloke on the right who looks just like Jack Ryder out of EastEnders fame?’
Another added: ‘Jack Ryder… Oh, how I loved Jamie Mitchell. My teenage heart broke the day EastEnders killed them off.’
Jack is most well-known for his role as the soap heartthrob Jamie Mitchell, who was tragically killed off on Christmas Day in 2002 after he was run over by love rival Martin Fowler.
After several days in hospital, Jamie abruptly passed away in his beloved Sonia Fowler’s arms, leaving her utterly distraught and fans at home weeping.
Happy couple: Jack was also famously married to Coronation Street actress Kym Marsh from 2002 to 2009
Close: During his time on EastEnders, Jamie had an iconic romance with Sonia Fowler – played by Natalie Cassidy
Since leaving EastEnders Jack has appeared in various other roles, including Single Spies, Popcorn and The Archers, and also featured in a touring production of The Full Monty.
The star was also married to Coronation Street actress Kym Marsh, from 2002 to 2009.
Simon Harper, Executive Producer of Holby City and Casualty, teased: ‘We’ve been talking to Jack for a while to find the right part for him on Holby and his powerful, nuanced audition for Evan blew us away.’
‘He’s both a household name and a superb actor, and fans who remember him as Jamie in EastEnders are in for a big treat and quite a surprise seeing him in this very different role.
‘Evan is a complex, alpha surgeon who makes some major waves in Holby.’
Jack Ryder will make his first appearance on Holby City on Tuesday 19th March.
RIP: Jamie was famously killed off on Christmas Day in 2002 during tear-jerking scenes, after being run over by his love rival Martin Fowler