Dr. Milo first appeared in "Cat Scratch Fever", and was voiced by Treat Williams. Milo engineered a plague to infect Gotham City's stray pet population for Roland Daggett. That plague also affected Catwoman when her cat, Isis, attacked her. When Batman stumbled onto that plot to look for the antidote, Milo unleashed an infected dog who attacked Batman and Batman got away with the antidote and used some of it on the dog during mid-chase. Milo was later seen about to drive a truck that would distribute the antidotes. Daggett told Milo that he better make sure that dog got away with Batman because if Batman evaded it, Daggett instructed Milo to keep driving as far away from Gotham in the truck that he's in would take him. Milo later reappeared in "Moon of the Wolf" where he was the one who wa