William Tockman (born March 11, 1965), also known as the Clock King, is a bank robber and former employee of Kord Industries. He suffered from MacGregor's Syndrome, a terminal illness, but instead of using the money he stole to ameliorate his own condition, spent it to help his sister who had cystic fibrosis. However, after failing to obtain the money needed thanks to The Arrow and The Canary, his sister succumbed to her illness which Tockman was denied to be present for. Now dying and with nothing left to lose Tockman uses his skills to stay out of prison for his crimes for as long as he can before he will eventually succumb to his own illness.