, also known as , the and , was a high-ranking agent of FOXHOUND.
Dr. (known simply as Dr. Petrovich in the original Metal Gear and Dr. Pettrovich Madnar in the MSX2 version of Metal Gear 2) is an Eastern engineer responsible for creating the TX-55 Metal Gear mecha in the original Metal Gear, as well the TX-11 Arnold (Bloody Brad) androids [REF].