Percival (Fallout 3)

Percival (named Protectron in-game) is a Protectron guard for The Mechanist $$

Background
Percival is found disabled in the corner of The Forge. If the Lone Wanderer threatens the Mechanist, he will call Percival to "attack this villain," causing Percival to activate and attack the player.

Appearances
Percival appears $$