 He also appears alongside the Eighth Doctor in "The Side of the Angels", the third adventure in the fourth "Doom Coalition" boxset, where he represents a group of Time Lords working with Weeping Angels to prepare an enclave in 1970s New York to protect them from the imminent destruction of the universe, only to be betrayed by the Angels and banished centuries into the past.<ref></ref> The Hound incarnation makes a further appearance in , where he acts as the chief administrator of an exclusive clinic using future technology and resources to treat diseases.The clinic's primary goal is to devise a means of altering human physiology so that the subjects can rapidly adapt and "evolve" to cope with any threat to their lives, the Monk attempting to force the Doctor to help by infecting Jo with a disease that can only be cured if his process is perfected.However, those subjected to the process develop a hive mind and a desire to "infect" the rest of humanity, forcing the Monk to help the Doctor devise a cure before he escapes.<ref></ref>

Literary critic John Kenneth Muir, in his "A Critical History of Doctor Who on Television" states that "This character, played as a mostly harmless con artist by Butterworth, is clearly an earlier version of the Master" <ref> </ref>







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