Judge Markway is a character portrayed by Dan Castellaneta in the ABC crime series Castle. Markway was a judge in New York City. He occasionally participated in Richard Castle's poker games with the Mayor and Captain Roy Montgomery, even before Castle became a consultant for the police. He provided Castle and Beckett with the warrant they needed to search Harrison Tisdale's apartment, after they identified him as the most likely person to have killed his sister Allison. The judge, to judge from his dialogue, is something of a golf fanatic. ("Flowers For Your Grave")