The salamander is named as such after a reenactment of a scene from Con Air in Act 4, after John rescues the bunny from being washed away in an oil river. He then "reunite[s] with [his] loving wife and daughter", presenting the Bunny to the confused salamander and adopting "her".
When Rose awakes to find the salamander in her room, she dubs "him" Viceroy Bubbles Von Salamancer, also changing his perceived gender. Rose then combines a captcha of the Viceroy, along with her eldritch plush, via her Alchemiter to create the Huggable Soft Salamancer Plush. Rose then alchemizes the Viceroy a wizarding outfit and appoints 'him' as her familiar, in charge of carrying her wands, as it is much more dramatic than using a Sylladex.
It is assumed that Rose takes the Viceroy on the remainder of her travels, as "he" is seen last of the Land of Heat and Clockwork. However, after Rose went grimdark, "he" is abandoned and left behind there.
Since the scratch, Casey has joined John and Jade on the Prospitian battleship as they ride towards the new session. Casey was seen sleeping inside the battleship next to the five planets of the pre-scratch session. As the Viceroy, "he" wears a black Rag of Demons and Rose's purple striped scarf. "He" wields a Crook of Frailty to perform Necromancy.
A building in Can Town is named the , either because Rose simply misses "him" or because she actually presumed "him" to be dead.