|First appearance||Glanni Glæpur í Latabæ (1999)|
|Last appearance||Mystery of the Pyramid (2014)|
|Created by||Magnús Scheving|
|Portrayed by||Stefán Karl Stefánsson|
|Full name||Robbie Rotten|
Robbie Rotten (Icelandic: Glanni Glæpur, lit. 'reckless crime') is a fictional character and the main antagonist of the Icelandic children's program LazyTown. He is the nemesis of the series' main protagonists, Sportacus and Stephanie, who promote exercise, healthy eating and an active and healthy lifestyle. As for Robbie, his favorite pastimes include eating junk food and watching TV. Robbie has fair skin, green-grey eyes, and black hair. He usually wears a two-piece suit of maroon and purple with gold pinstripes, formal shoes, a navy blue shirt with cuffs and cuff links. He is the tallest character.
Being extremely lazy, Robbie naturally opposes their attempts to spread a healthy influence to the people of LazyTown and employs various schemes to discredit healthy living and run "Sportaflop" (his pejorative name for Sportacus) out of Lazytown every episode, although his plans are always foiled in the end. He was based on his incarnation from the original musical, being played by Stefán Karl Stefánsson, as on the Nickelodeon TV show.
In the second Icelandic stage play, the character was called Glanni Glæpur and, when he arrived at the town, he wore a completely black outfit; but, when he was disguised as Rikki Ríki (a very wealthy man), he wore a purple coat, purple pants and shoes that are similar to those that Robbie wears in the television series—although at that point he did not yet have his hair covered in gel. In the television series, Robbie Rotten wears a navy-blue suit, a purple and red vest, and white shoes with black soles.
Robbie Rotten rose to internet fame through the song "We Are Number One".
On August 21, 2018, his actor Stefán Karl Stefánsson died of bile duct cancer at the age of 43.