Could we get some facts about McDee
Earl McDee (his full name) is autistic, and has a STRONG hyperfixation for trains and anything related to them.
So much so he has a massive collection of train paraphernalia in his home, be they toys, models, images, even actual scrapped parts of old ones that he managed to bring home.
He is best friends with Daziel, the mechanic of the train. The two are incredibly close, and despite Daziel's short temper, Earl is able to ramble to him about his hobbies all day long without so much a furrow of the brow.
Earl almost never gets angry, in fact most people say it's impossible to make him angry, as even his best friend's and boss' crude behavior never seems to dampen his mood. However, there IS one thing that WILL set him off: And that's hurting the people (not things. People.) he deeply cares about.
He has an older sister, Emma, who cares for him very much, to the point that she researches everything about neurodivergence/autism just to make sure she's on the same page as he is.
He does a daily jog around his block an hour before heading to work, and he always walks his way there.