The Leshiy is a character from the upcoming Disney animated film Hope. He is a powerful forest spirit who aids Nadya, Pyotr and Ivan in their search for Granny Bones.
"Whether he is called the Wildman or Grandfather Forest, tales of the Leshiy are constant in the elements of his mission: He guards and nurtures the flora and fauna of his realm as Lord of the Woodlands. The stories describe him as a spirit of incredible power, able change his shape, disappear into the green, and command beasts of the wilds. Unfortunately, the stories also say he’s not one to give a splinter about humans. However, should one prove themselves worthy, the Leshiy will be an ally that sticks like sap."
The Leshiy, or Leshy is a real figure in Slavic folklore.