|AKA||Dr. Death (Martha)|
|Appearances|| "A Death in the Family"|
|Portrayed by||Robert Picardo|
Dr. Murray was a forensic pathologist - regarded as the best in New York - who had previously advised Richard Castle on details for his past books (one such piece of advice being the effects of putting a human head in a microwave). Castle contacted Murray to ask for his opinion on the murder of Beckett's mother.
Murray's analysis of the case file determined that, although Beckett's mother had been stabbed multiple times, only one blow had been actually fatal, the initial thrust, with everything else being added merely to give the impression that the attack was random, his analysis of similar assaults from the same time - requesting the additional information on a hunch - suggesting that Beckett's mother was murdered by a contract killer ("A Death in the Family").
Murray returned when Doctor Lanie Parish asked for his opinion when she was analyzing the body of Irish mobster and Westie Jack Coonan, Murray's analysis confirming that Jack was killed by the same person who had killed Beckett's mother ("Sucker Punch").