Fix-it Felix Jr.

Felix was programmed to be the ultimate "good guy". He is charming, warm, gregarious, and well-loved all throughout the arcade, and more specifically, the in-game neighborhood of Niceland. To the Nicelanders, Felix is the definition of goodness and heroism, and in turn, they constantly praise Felix as their noble leader and treat him with the utmost admiration and respect. Another notable trait of Felix's, and likely an effect of his programming, is how polite and incapable of genuine hatred or vitriol he is, even when he's genuinely furious. When venting to Ralph about the awful day he's had, all he can muster is declaring how "cross" he is with him, and is similarly averse to using harsh language, saying "he doesn't have to do boo" for him, with apparently even that being harsh by his own standards.