Otacon

Dr. Hal Emmerich (AKA Otacon) is one of the main characters of the Metal Gear Solid series. He is the eccentric chief engineer of Metal Gear REX.

Biography
Otacon became a close friend of Solid Snake after he rescued him from Shadow Moses Island where he was developing Metal Gear REX in 2005. Once learning of REX's nuclear strike capabilities, he joined forces with Solid Snake. Later, he became a founding member of the anti-Metal Gear (and secretly anti-Patriot) NGO Philanthropy, along with Nastasha Romanenko. After her rescue from the Patriots, he became the adoptive father of Sunny. A devoted fan of anime, Hal's chosen nickname is derived from the Japanese animation and culture convention Otakon, which he regularly attended.

Connection with All-Stars Fanfiction

 * Otacon appears as a minion who can be unlocked after reaching Rank 8 with Old Snake.