The Sky Folk are a faction of white-skinned humanoids from the Ninjago toy line and the Ninjago: Masters of Spinjitzu animated series. They typically sport mechanical wings that enable them to fly, and live in the mountaintop kingdom of Shintaro.
The Sky Folk established their city of Shintaro at an unknown point in the history of Ninjago, and soon prospered in their peaceful kingdom. Unbeknownst to most of them, however, the caves of the mountain beneath them were home not only to hostile creatures, but to the rival tribes of Geckles and Munce. These subterranean neighbors were forced into servitude by the evil Skull Sorcerer, with the deepstone ore they mined serving to finance the plenty enjoyed by the Sky Folk. However, they were kept in ignorance of these facts, and forbidden to enter the tunnels beneath their city, which had once been ruled by the wicked sorcerer Hazza D'ur.
Shintaro Royal Guard
The Shintaro Royal Guard are soldiers clad in gold armor who defend the city of Shintaro and patrol its vicinity to deal with various threats.
Hailmar (voiced by Brian Drummond) is the leader of the Shintaro Royal Guard and second-in-command to the ruler of Shintaro.
In "Shintaro", Shintaro and the Royal Guard save the Destiny's Bounty from crashing into a nearby mountain after it is damaged by attacking dire bats. Hailmar greets Master Wu and the Ninja, who have been invited to Shintaro, and presents the city to them as his comrades carry the Bounty safely into sight of the city.
- His name is presumably a play on "Hail, Mary", part of a ritualistic prayer in the Catholic church, based on the somewhat angelic theme of the Sky Folk.