Ken is an enormously Rotling with a muscular albeit rotund physique. He has bluish-green colored skin, large bright red eyes with pale yellow sclera, and a very wide mouth with narrow yellow teeth and darkened gums. He also has a bloodied kitchen cleaver placed in the center of his indented head. His left arm also has peeled-off chunks of skin, which expose the fleshy muscles of his biceps and bronchioles.

He wears a bloodied off-white apron that has a pair of oversized straps and small yellow 