Stefan Karl Stefansson died on Tuesday surrounded by loved ones, reports TMZ. He was 43.
His wife Steinunn shared the sad news in a statement to E! News, saying, "My beloved, Stefan Karl Stefansson, 43, has passed away after battling aggressive bile duct cancer for two years.”
She continued, "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."
In lieu of a funeral, Steinunn said his "remains will be scattered in secrecy in a distant ocean."
Stefansson was best known as Robbie Rotten on Nickelodeon's “LazyTown,” and his friend and manager Cheryl Edison said he will remembered in a very special way.
"In celebration of Stefan Karl and his contribution to the world of humor and joy of heartfelt expression that unites us all, The Stefan Karl Academy & Center for the Performing Arts will launch in 2019 in Switzerland, hosted by HIAG Immobilien,” she told E!
In addition to Steinunn, Stefansson is survived by their four children.