Lieutenant O'Tool is under the command of engineer Kelly, who is the chief engineer of the Heavy Battlecarrier Excalibur. O'Tool is a more hands-on engineer.
While O' Tool is not the politician that Engineer Kelly is, he is dedicated to his ship. Though he has enjoyed the increased health that the research and technological of Project Morpheus has provided, Engineer O'Tool still has problems sleeping. It is common to find him personally overseeing a third shift engendering team, or taking on a personal project to make his ship run more smoothly.