XCOM Enemy Unknown - The Sleeper Must Awaken

Psionics in videogames essentially began in 1994's X-COM: UFO Defense. They're not as tactically crucial to XCOM EU as in the original game, but the story of human evolution forced by conflict is always compelling, despite minimal characterization in this case. The game 'chose' my favorite trooper as the volunteer, Col. Cameron "Wolverine" Gray (Scottish/Assault, of course).