Return of Ultraman
Episode 36
S1 E36:
MAT was integrating a woman who emmitted mysterious radio waves. The woman visited a friend, sucked her blood and escaped. It was found out the the woman was supposed to be dead in a holiday cottage and her body was manipulated by Alien Draculas! Confronting Go, Draculas said that Ultraman was the one who's betraying the other aliens by being an ally of human.