Thomas Blake was an exotic cat catcher around the time Black Mask put a major bounty on Batman's head. Blake had brought some big cats to the Gotham Zoo to be presented, having posters celebrating his achievement placed throughout Gotham. [1]

Years later, around the time the Joker had staged a massive breakout at Arkham Asylum, Blake was now an established masked criminal going by the name of Catman. Catman was hired by the Joker to dress up as Batman and fight the former Robin Jason Todd, who he had tied up and tortured for many years underneath Arkham. Despite his weakened state, Todd successfully beat Catman and, after being handed a gun by the Joker, shot the Batman impersonator. [2]