Actor Dean Sullivan has died at the age of 68, his family has confirmed.
Sullivan was best known for his portrayal of Jimmy Corkhill in the Channel 4 soap Brookside between 1986 and 2003.
The actor had been diagnosed with prostate cancer in 2018.
In a statement, Sullivan's family said they were announcing with "deep sadness" that the actor "passed away peacefully following a short illness".
"Dean is best remembered as the longest serving cast member of Channel 4's groundbreaking Brookside playing the role of Jimmy Corkhill, making Dean a British soap icon.
"To millions he was and very much still is remembered as 'Jimmy', to family and friends he was 'Dino'."
It continued: "Dean's family wants to thank Arrowe Park Hospital for their unwavering and consistent support."
"We ask that you respect their privacy in their time of grief."
Sullivan was born and educated in Liverpool, and starred in Brookside when the show was at its peak, regularly drawing audiences of eight million.
In 2003, Sullivan won the British Soap Award for outstanding achievement for his role as Jimmy in the Mersey TV soap, having played the role for 17 years.
Brookside, the brainchild of Grange Hill creator Phil Redmond, launched in November 1982, with its houses situated in a real cul-de-sac which was part of a housing estate in West Derby, Liverpool.
Sullivan's character was involved in one of the soap's most famous storylines.
Jimmy Corkhill and Eddie Banks were seen discovering under a patio the body of Trevor Jordache who had been murdered by his ex-wife Mandy (played by Sandra Maitland) following years of abusive behaviour towards her and their daughter Beth, played by Anna Friel.
The last episode was filmed in September 2003 and aired two months later - and it was Jimmy Corkhill's face that last filled the screen.
Playwright Jonathan Harvey was among those paying tribute to Sullivan on social media.
"I do love a soap icon, and they didn't come more iconic than Jimmy Corkhill," Harvey posted on X/Twitter.
"What terribly sad news. My thoughts are with his many friends and family."
Sullivan's other acting credits included roles in the BBC's Doctors and ITV's The Royal.
Earlier this year, Sullivan discussed his diagnosis and encouraged the public to get checked for signs of cancer in an interview with the Liverpool Echo.
He said he went to the doctor because "the strength of my flow when I used to go to the loo to have a pee was reduced".
"The first time I went to the doctor's surgery he said we'll just keep an eye on it and see how you go on. It was a few weeks later, I just knew that wasn't right."
He continued: "When I went back I saw a doctor who specialised in prostate treatment. He gave me a quick examination and within two weeks I was at the hospital speaking to the consultant.
"If I'd have listened to the first doctor, it might have been a different story so always trust your gut. 11 times out of 10, you're right... As with many cancers, if they are caught early, they are treatable."