In addition to Dr. Walter Bishop and Dr. Glados, we'll be seeing more high-ranking scientists of Dr. Rex towards the finale of the Adventurers' Island story arc. Like Dr. Bishop (Fringe) and Dr. Glados (Portal), they will be named after characters who fall into the categories of "mad scientist", "evil scientist", or "sadistic being focused on science".

Right now, I've got two candidates in mind. Both of them, one of them, or neither of them might actually appear in the RPG. In case they don't, here are their names:

- Dr. Wallace Breen, named after the main antagonist of Half-Life 2

- Dr. Zed Provehzor, inspired by "Ze Professor" from the Conker series