Forest Spirit

Forest Spirit, also called Shishigami (シシガミ) and Night-Walker (デイダラボッチ, Deidarabotchi), is a supporting character in Princess Mononoke. He is known as a god of life and death.

Appearance
The Forest Spirit looks like a deer, but with more antlers and a human-like face;[1] He can transform into a gigantic, semi-translucent humanoid during the night called the Night-Walker.

Trivia

 * There was a species of front-eyed goat called Myotragus, somewhat resembling the face of Forest Spirit.
 * According to Hayao Miyazaki, Forest Spirit is a "low-classed" god.
 * Deidarabotchi's design was likely based on the giant appeared in Daijiro Moroboshi's Mad Men where Miyazaki deeply respects his works.