Drago Pettrovich Madnar

Dr. Petrovich Madnar is a robotic engineer responsible for the creation of the TX-55 (Metal Gear) prototype. He was captured on his way to the U.S. and is now being forced to make war machines for Outer Heaven, while his daughter is held hostage. Solid Snake learns Metal Gear's weakness from him after rescuing Elen.

During the events of Metal Gear 2, Petrovich Madnar meets with Snake in Zanzibar Land, and has appeared to have been taken prisoner along with Dr. Kio Marv. n truth, Dr. Petrovich was voluntarily in Zanzibar Land overseeing the development of the new Metal Gear in revenge for being rejected by the American scientific community and subsequently institute into an asylum. He orchestrated Dr. Marv's kidnapping (and eventual death) and attacks Snake after finding the truth.