Felix Walken

Felix Walken (フェリックス・ウォーケン Ferikkusu Wōken), formely known as Rail Tracer (レールトレーサー Rērutorēsā), introduced as Young Conductor and born Claire Stanfield (クレア・スタンフィールド Kurea Sutanfīrudo) is the legendary freelance assassin Vino (ヴィーノ Vīno, Italian wine), who is hailed as the best in the world.

Biography
The name Vino references the way he mutilates his targets, leaving them caked in a layer of blood and looking like they are soaked in wine. He was adopted into the Gandors at a young age and is considered the fourth Gandor brother. Despite this, he is not considered to be part of the family. In 1925, Huey Laforet visited to New York City in the hopes of meeting Claire, who he described as a genius, but Claire ran away from home to join the circus and became an acrobat. He uses the strength and agility he gained from his training in his trade. It should be noted that he is also nearly unstoppable in physical combat. In addition to being an assassin, he also works as a conductor aboard the transcontinental train Flying Pussyfoot, making it easier for him to travel to his targets. When the train is hijacked, he assumes the identity of the Rail Tracer, a monster that eats train passengers, to kill train hijackers and ensure the passengers' safety. He meets and proposes to Chane Laforet at the train incident, they met another time in Manhattan with the gang of Jacuzzi Splot. He later purchases the name Felix Walken from a retired assassin. His great-grandchildren are named Claudia Walken and Charon Walken.

Personality
Claire is a solipsist, which is the philosophical idea that one's own mind is is the only thing sure to exist. In the anime, he says that he cannot die because the world is only a dream and that all people might just exist in his imagination, therefore, if he were to die there he would just wake up.

Abilities
His physical abilities (such as strength and speed) are above average, he also possess the mental stability to feel no guilt and is very charismatic.

Trivia

 * Despite not being a main character, he plays a vital role in the story.
 * There is evidence that suggests that Claire is partially right in his assumption that he is supernatural being or a shapeshifter: the gun that appears in his hand when he's fighting Ladd; the fact that he seems to change shape slightly when attacking two of the white suits; his eyes glowing red, etc. However, further analysis may show him as nothing more than a malicious and physically/mentally skilled solipsist. (EDIT: The gun that appears in his hand was taken from the false conductor; glowing red eyes are temporary artistic flair (characteristic of anime), denoting evil or malice. Sadly enough, Felix is simply human; albeit awesomely awesome, of course.)
 * Claire Stanfield has over 3 Aliases which he uses.