And I... I came here to rescue you! So, you can't go saving me.
—Pierce to Aya Brea
Pierce D. Carradine is in charge of MIST's training area and usually delivers news to Aya Brea when they're on the phone.
He doesn't like guns and does the technical work, once doing illegal hacking. A natural loner with few friends, he's rather laid back and considers Aya a close friend, trusting her words even when she can't prove herself at the time. It also seems he developed feelings for her.
Parasite Eve II
When Aya begins to suspect Eric Baldwin during the game, Pierce researches him and any time they are on the phone, he seems to come up with something new for her. He makes the deal with Gary Douglas about selling Aya guns and is always ready to get her the backup she needs.
If the player is going for the best ending, Pierce shows up at Dryfield in the Mojave Desert, but gets hurt on the water tower. Aya then needs to get three ice bags to him quickly. Pierce will give Aya the Ofuda Charm which, when attached, increases her attack power by 50%.
Pierce then appears at the shelter at the Pod Service Gantry, and activates the lift to Neo Ark for her.
He later helps Aya by calling in the marines.
After the marines arrive, Aya may save him in a freezer, a requirement for the best ending and gives 30,000 BP.