Sven Vollfied

Sven Vollfied (スヴェン＝ボルフィード, Suven Borufīdo) is a sweeper, who becomes Train's partner after Train leaves Chronos. He later befriends Eve, being the first person to treat her like a human, which causes the two to become very close. He follows a strict code of chivalry; he is always respectful to women and children and acts very proper. He is often tortured by Train's capricious personality and is usually dragged into trouble and even more debt because of it. Sven is skilled in inventing and making innovative weapons and other various equipment, including bombs and special bullets for Train. Sven's weapon of choice is originally a normal pistol, but after that is destroyed, he invents the Attaché Weapon Case, a suitcase equipped with hidden weaponry inside of it. It contains a built in machine gun, grenade launcher, net launcher, and electrical cable, and various small weapons inside the case. He is voiced by Keiji Fujiwara in the Japanese anime and Brandon Potter in the English dub.

Before becomming a sweeper, he is an agent for the International Bureau of Investigation, along with his partner, Lloyd Goldwynne, who is clairvoyant. After messing up on a job to capture a crime family, Sven looses his right eye and Lloyd sacrifices himself to save him. Having seen the future, Llyod had registered as a organ donor, resulting in Sven obtaining one of his "Vision Eyes." This gives Sven the ability to see a few seconds into the future, allowing him to dodge attacks easily. It puts a massive strain on his body, so he normally keeps it under an eye patch. He later evolves it into the "Gaspar Eye", after training and encouragement from Lloyd's spirit, which allows him to see everything around him in slow motion. He can easily dodge incoming attacks from a large number of different directions with less strain.

Source: Wikipedia