Hellvil

Hellvil is a Pokemon character that only appears in Pokemon: Unlimited. He is a police officer that works alongside Progress in Jolly City's Police District, and the leader of the Houndour & Houndoom squad. While in Chapter 13 he was a Houndour, he evolved in Chapter 18 as a Houndoom.

Physical Appearance
Hellvil as a Houndour had a dark blue coat, with horns sticking out of the cream-yellow skull-like figure on his head, which also has red eyes. His eye are green, with the same cream-yellow colors on the ribcage-like parts on his back and shackles on his legs, and has a cream-orange snout.

As a Houndoom, his horns are longer, with the same coat & eye color, including on the bones and shackles. However, he now has a skull-like accessory on his neck with red eyes, and sports two tails.