Grizzly Bear (Dawn of the Planet of the Apes)

Grizzly Bear is are major antagonist in "Dawn of the Planet of the Apes". https://vignette.wikia.nocookie.net/planetoftheapes/images/1/1b/DOTPOTAs-BlueEyes_vs_Bear.jpg/revision/latest/scale-to-width-down/437?cb=20150331210615

Grizzly Bear Plays The Red Death in How to Train Your Forest Animal
He is the Red Death Dragon

Grizzly Bear Plays Genie Jafar in Pongoladdin & Pongoladdin II: The Return of Buster
It is an evil genie

Grizzly Bear Plays Dragon Maleficent in Sleeping Vixen
It is a dragon