Yakul

Yakul (also known Yakkuru in Japanese) is Ashitaka's loyal giant serow. He looks very similar to the Forest Spirit, but doesn't have a human face or as many horns.

Trivia

 * The red elk is a fictional species of deer, but Yakul's antlers closely resemble those of the lechwe species of deer. Maybe it was only called red elk because lechwe aren't native to Japan.
 * Yakul was based on the same named character appeared in the The Journey of Shuna.
 * Arren's steed resembling camelidae appeared in the Tales from Earthsea was based on Yakul as well.