Clock King is a fictional character in the DC Comics universe. He is primarily an enemy of Green Arrow. He is a supervillain only in the strictest senses of the term, as he doesn't have super-powers or any exceptional physical abilities but uses a lot of clock-themed props and weapons for his crimes. He wears a blue suit with clock drawings with a cape and a clock mask on his head.
Clock King's real name is William Tockman and he used to dress up alarm clocks for a living, while taking care of his invalid sister. He later found out after a visit to the doctor that he only had six months to live; he despaired at his sister's future, and so took to super-villainy to raise enough money to support her after his imminent death.
Little did Tockman know that he really wasn't ill and was not going to die in the next six months: his health exam papers were actually switched by accident with another patient.
The Clock King later went on to join Major Disaster's Injustice League , which became Justice League Antarctica and was later assimilated into the Suicide Squad.
