Alien Cygnus-61 (白鳥座61番星人 Shiratori za 61-ban Seijin?) are aliens from Cygnus-61 who appeared in the TV series, The Return of Ultraman. One of them, Erika Shiratori (白鳥エリカ Shiratori Erika?) was kidnapped by one of the Messie people. She appeared in episode 45.