Icelandic actor Stefan Karl Stefansson, who played LazyTown villain Robbie Rotten, has died aged 43 from cancer
He was initially diagnosed with pancreatic cancer in
He often shared his treatment and progress with fans online on social media - announcing in March the disease had returned and was inoperable.
"It's not until they tell
In June his wife Steinunn Olina revealed the
A post on Tuesday paid tribute to her
"Stefan's family wants to express their gratitude for the support and warmth received in recent years, and to express their deepest sympathy to the many friends and fans of Stefan Karl," she posted.
The actor spent his early career working in film and theatre - playing the title role in How the Grinch Stole Christmas in the US from 2008-2015.
LazyTown was produced from 2004-2007, with more episodes made in 2013 and 2014.
It followed the life of a pink-haired eight-year-old girl named Stephanie and her superhero companion Sportacus, who attempt to liven up an inactive town she moved to.
The character of Robbie Rotten was the show's villain and attempted to thwart their schemes, preferring to stay unhealthy.
The show, produced in Iceland, was translated into dozens of languages and aired in more than 180 countries worldwide.
Fans who grew up with the show shared their sadness at the news of Stefansson's death on social media.
The character's popularity has continued online in recent years, where his exuberant facial expressions are frequently used in memes.