Gorilla "Boss" of Gotham

The Gorilla "Boss" of Gotham is a DC crime boss that fights Batman.

History
George "Boss" Dyke was a mobster of Gotham. He died inside the gas chamber of the Gotham State prison. On Dyke’s orders, his body was retrieved by members of his own gang and was presented to the hated; surgeon Doctor Willard. Performing dangerous surgery, Willard managed to transplant George’s brain into the body of a large gorilla, reviving Dyke. He's know a gorilla with a human brain. Because of this he know has great physical strength and endurance, though at a price. Dyke can no longer talk human language and is force to communicate with his men by pen and paper