Captain Aldridge is the commanding officer of the Hedgehog SOE team, a battle-hardened soldier operating in the North African desert behind Axis lines. He greets H-Cell with the wry scepticism of a man who has been waiting too long in the heat for his American reinforcements, but quickly establishes a professional working relationship with Haze, bonding over shared military experience. He briefs the joint force on available ordnance, approach options, and the approximate layout of the Oasis of Whispers using an AI-generated map that he warns is not to be taken literally.
During the battle at the Oasis, Aldridge's composure held through the initial firefight — shooting Das Ungerhauer and scoring a critical hit — but the creature's imperviousness drove him to temporary insanity. In that state he pulled his combat knife and charged Das Ungerhauer, which predictably went badly for him. Concurrently, he was also struggling against quicksand near the pool. He is last seen fighting on even in a state of derangement, stabbing at the downed Das Ungerhauer at his feet.