Honeyfuggle

Honeyfuggle is a mischievous thief who has recently become notorious in the wizard community after a spree of stealing several magical artifacts used to boost their own powers. She ducked onto the Pale Horse in order to hopefully lie low for a while but quickly became tempted by all of the magical energy permeating the train (thanks to the presence of some powerful wizards, several artifacts unknowingly in Henry's possession, and the fact that the train itself has magical properties). They use their saccharine charisma and illusionary magic in order to get friendly with the passengers, in the hopes of eventually pulling one over on them and breaking away with the biggest heist of their career. His plans however are eventually foiled after he gets too arrogant and accidentally reveal himself as a fraud. Honeyfuggle is an alias that they took on when they started committing their crimes; their real name is Mel.