Shadow Galactica been played by two actresses, Haruko Yamaguchi and Megumi Wakamatsu. and appear only in Act 48 of the manga. Sailor Lethe is named for a naiad in Greek mythology, and for a river of the Greek underworld where dead souls go to forget their past lives before being reincarnated. Sailor Mnemosyne is named for the Titaness of memory, the mother of the muses, as well as another river in the underworld which brought remembrance and omniscience. Sailor Lethe has an attack called "Galactica Myosotis Alpestris", which she used to attack Usagi. Myosotis alpestris is the name of an alpine species
Isle of the Dead (Zelazny novel) which is responding to a call for help from a friend, Ruth Laris. In the course of investigating her disappearance, he receives another message that he will find all his friends "on the Isle of the Dead". The message is in Pei'an, addressed to "Shimbo" (the name of the Pei'an god connected with Sandow) and signed by "Belion" (Shimbo's traditional enemy in Pei'an mythology). Sandow soon learns that somebody has been stealing the memory records and tissue samples of people who died on Earth. These things are required of everyone who lives on Earth, so they can be recalled to