 MISC: The poem/song "The Naming of Cats" states that a cats "second  name," such as those used by the characters in this show, is unique  and not shared by any other cat. However, the song introducing Old  Gus the Theatre Cat says that his full name is Asparagus, which is  also the name of another cat in the show. This is because John  Mills, who played Gus, was unable to do the rest of the singing and  dancing the role required, so the character was split into two  identically