The Cluemaster is a supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman as well as a recurring enemy of Tim Drake, the third Robin. Cluemaster first appeared in Detective Comics #351 (May 1966) and was created by Gardner Fox and Carmine Infantino. A failed game show host, the character became a criminal who leaves clues to his crimes, but unlike the Riddler's clues, they are not in the form of riddles. He is also the father of Stephanie Brown who became the vigilante Spoiler and later the fourth Robin and third Batgirl. Cluemaster appeared in the second season of the Arrowverse series Batwoman, portrayed by Rick Miller. Publication history Cluemaster first appeared in Detective Comics #351 (May 1966) and was created by Gardner Fox and Carmine Infantino. Fictional character biography The Cluemaster starts his criminal campaign by a daring but unsuccessful attempt to learn the secret identity of the Batman, in order to gain a fighting edge. He returns to Gotham for a rematch with Batman, then appears in several supervillain crowd scenes over the years. With several other villains, Cluemaster becomes a member of the Injustice League, a team of out-of-luck supervillains who, when banding together, become even less successful than they have been in their individual careers. The Injustice League have been defeated time and again by the Justice League International, at least when they are not making laughingstocks of themselves. Trying to reform, the members later become the core of the equally laughable hero team Justice League Antarctica. They help out the Justice League when JLI liaison Maxwell Lord lies in a coma, but again later reform as the Injustice League as henchmen of Sonar. Cluemaster reappears in Detective Comics #647 by Chuck Dixon and Tom Lyle. In this three-issue story, Cluemaster has reformed and been released from Blackgate Penitentiary. Cured of his compulsion to leave clues, Cluemaster originally joins a gang and plans their heists in exchange for 10 percent of their winnings. He later kills the leader by suffocating him with a strong polymer over his mouth and nose, and begins to plan a master heist. During this time, it is revealed Arthur Brown has a daughter named Stephanie, but rarely spends any time with her due to long periods of incarceration. Stephanie is furious when she discovers that he has returned to crime without