Sheppard O'Neill

General Sheppard O'Neill is a character in Deus Ex: Human Revolution. He is voiced by Don Jordan.

Human Revolution
He was present at the Sarif Industries labs at the night of attack by the Tyrants, checking the progress on Typhoon Explosive System. Vasili Sevchenko, one of the scientists working on the project, provided him with a demonstration of a very early version of the augmentation, with which O'Neill was impressed.

Trivia

 * Later in the game, if the player hacks David Sarif's computer in his office, they can read an e-mail in which he and O'Neill discuss the concept of a "skull-gun", which in Sarif's opinion would never be viable as a mechanical augmentation.
 * In Deus Ex, Gunther Hermann makes repeated requests for a skull-gun, suggesting that it was eventually created in later generation of mechanical augmentation.
 * In Deus Ex: Invisible War, players can find a datacube in the ruins of UNATCO HQ, with a shipping order for one of these augmentations. However, Sam Carter ordered the augmentation to be returned to the recipent, as it arrived shortly after Gunther's death in Paris.