Stefán Karl Stefánsson
Later, Stefán Karl had been invited by Magnús Scheving, an Icelandic gymnast, to portray one of the characters in the second LazyTown play. Scheving created the plays because he was concerned that Iceland's younger generation is not doing enough exercise. Stefán Karl explained that "[Scheving] wanted the kids to get healthier, so he created this musical called LazyTown. He played Sportacus, the fitness fanatic, and I was Robbie Rotten, the guy who liked to stay indoors and sleep". After initial success with the musical, Nickelodeon eventually made a deal with the creators of LazyTown to air the first 40 episodes of LazyTown along with a special studio built in Iceland. During the first few years of LazyTown in the early 2000s, Stefán Karl initially knew no English, but soon became fluent.