Demetri Bowser was a security officer working aboard Talos I. He was present in Simulation Labs during Morgan Yu testing. After a Mimic attacks Sylvain Bellamy, Bowser becomes unstable and Alex Yu orders Sarah Elazar to send officers in order to detain him.
Bowser is seen rushing into the lab, shotgun blazing, attacking the Mimic that assaults Bellamy. It's unclear whether or not he killed it. He isn't seen again until Morgan Yu finds him locked in a holding cell, killed by a Mimic that has taken the place of his chair. He left behind a note, expressing his worries about station security and desire to help contain the Typhon.