Arthur Brown was the supervillain known as Cluemaster.
A former television show host and once married to Crystal Brown, Arthur managed to father a daughter, Stephanie Brown. However, he resented his daughter, not believing her to be worthy enough to be his daughter. Arthur and Crystal eventually divorced. Eventually dragged into a supervillain scheme, Arthur became the Cluemaster and turned Crystal back to his side using money. Managing to outsmart the GCPD every time, Arthur was eventually stopped by the Batman. The Dark Knight let Arthur go, however, when he found out about Stephanie.
Eventually, Arthur joined forces with an unknown leader and returned as Cluemaster. After Stephanie found out about his activities, Arthur tried to kill his own daughter, but failed.