Odo
Currently in Highgate, being looked after by Stanley as a solution to his voice problem is being looked into.
Odo was originally one of the mecha staff, with the unfortunate full-volume voice of his creator, that serviced the train. These mecha staff included elemental Roombas as well as tiny robotic butlers who would stand at attention until given an order or dismissed. While he was one of many robot butlers, Odo took a particular liking to Melinoe Expspiravit, after she had basically claimed him as hers. He would bring her random gifts throughout the journey, including tea and hazelnut & maple insense, and when asked if he would leave with The Goons he readily accepted.
The Goons brought him with them to The Goblin’s Woe, where it was believed that Davos Tebin might be able to help them fix his voice box. While it is currently unclear if Davos was successful in this endeavor, Stanley took a liking to the little robot - immediately beginning to teach him the ways of bartending.