Sportacus 10 (call him Sportacus) is the "above-average" hero of Lazytown. He gets the kids moving, helps them make healthy choices and also saves them from life's little accidents. Unfortunately, not everyone is pleased with the new activity in Lazytown, and Robbie Rotten spends most of his time plotting new ways to drive Sportacus away from Lazytown, forever.

Sportacus lives in the skies above Lazytown in his Airship and comes down either when his crystal goes off (informing him that "Someone's in trouble") or someone sends him a letter. When he wants to get back to his airship, all he has to do is yell "ladder" and he can climb back up.

Sportacus never stops moving and he enjoys doing anything he can in a new "sportacular" way. He enjoys every sport, and quickly picks up new ones, like baseball.