Stan Blazkowicz

Stan Blazkowicz is a Marine and one of three protagonists in Doom II RPG.

Sargeant Blazkowicz is the subordinate of Major Kira Morgan, and is part of her squad along with Riley O'Conner, the Marine squad's resident scientist. Their squad was sent to Tycho Station on the Moon in preparation to research events on Mars. But they encounter a new incursion on the moon, and are forced to travel to various planets in the galaxy, and Hell itself.

Behind the scenes
He is not the Marine (Doom's protagonist) in Doom RPG or the one in Doom 3 who went missing after the events of that games/universes (there are allusions to events of Doom 3 occurring concurrently to Doom RPG or as a prequel to Doom II RPG, at least in the RPG universe), and may or may not be intended to represent the Marine in Doom I/II (events on Moons of Mars, and Earth alluded to as possibly being future invasions within the RPG series universe). These particular Marines appear to be clones or relatives of each other (sharing the same sprites).

Depending on which character is chosen, the other two leave with Caldex to take part on their own paths through the base.