Mustache Girl

Info
Mustache Girl (sometimes referred to as Mu) is the main antagonist of the streams

History
Mustache is fed Oreos which causes her to hate Luna Wolf and want revenge constantly following the crew around and only attacking when Hat Kid isn't around even sinking a Cruse Ship at one point she finally gets her cookies by the end of the stream. she later appears in Last Impact: 2 where she ends up being chased by Bow Kid and is seen spraying Graffiti all over the island and she later tells the party where the magnets are

Trivia
she is also the antagonist in Hat Kid and Mustache Girl escape a sinking ship in it she is also responsible for sinking the ship