EVA

EVA, also known as Tatyana (Russian: Татьяна), and later known as Matka Pluku, and Big Mama, was a spy who fought alongside Naked Snake during Operation Snake Eater. While posing as a KGB agent, she actually worked as a spy for the Chinese People's Liberation Army, tasked with obtaining the Philosophers' Legacy. She later became the surrogate mother of Solid Snake and Liquid Snake. Her age in Metal Gear Solid 3: Snake Eater is 28 years old. Her age in Metal Gear Solid 4: Guns of the Patriots is 78 years old.