The Cluemaster (Arthur Brown) 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.[1] 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.[2] Cluemaster appeared in the second season of the Arrowverse series Batwoman, portrayed by Rick Miller. Ethan Embry portrayed Arthur Brown in Gotham Knights.