Steven Mueller

Steven Mueller is a researcher working on Talos I during Prey (2017).

Background
Steven Mueller is a Theoretical Physicist, working in the Psychotronics, onboard the Talos I. He is mentioned in email between Dr. Hans Kelstrup and Alex Yu, mentioning "Mueller's Staff", meaning he is in charge of a team, presumably made of Janos Joszef and several others.

Prey (2017)
Morgan Yu finds Mueller's corpse near an elevator shaft that has "Do not enter" written above them in Psychotronics. This suggest that Mueller died while trying to use the broken elevator, as his neck seems to be broken. He carries biohazard waste, glucassist! and a Mimic tumor.