Greenway is a rookie member of the Cleaners, and a member of Samuel's team.
Greenway was one of the Cleaners who accompanies Selene to a abandoned fortress high up in a mountainous valley where William Corvinus's prison was located. Of the five-man team that accompanied Selene into the dungeon, he was the last to be mauled by William Corvinus after being accidentally shot by team leader, Samuel, right after he had just been saved by Selene from falling down through the rotted wood on the bridgeway.
Greenway initially dies from shock trauma and blood loss, but within a few minutes, he begins to revive and Change into a first-generation Werewolf under the full moon. After Selene finishes Samuel off when he starts Changing, a partially-Changed Greenway runs along the bridgeway before Selene finishes him off with Samuel's Uzi automatic.
After Michael Corvin has revived, and William Corvinus has re-entered the battle, Selene uses Greenway's Uzi automatic to open fire on William from up on the bridgeway, before Marcus Corvinus, having freed himself from William's prison chamber, pulls down the Cleaners helicopter.