The character that comes to my mind is Edward Elric from "Fullmetal Alchemist", even though the show is not quite as popular in the UK as for example "Attack on Titan", "Naruto" and "Dragon Ball Z". I enjoyed this character because of the sense of his emotionalism due to his such tragic past and that he still bears his sins whilst retaining his unbreakable bond with his younger brother Alphonse.