Mage: Dark Materials
Johann Otto Cartwright
Short, graying hair, large ears, always ready with a frown
Johann used to be a respected scientist, but a series of unfortunate incidents (none of it his fault of course) led him to become ostracised and ended up in a backwater institution. There he was contacted by Josef Virek and given a chance to do true science again. He accepted.
He hates space, is not particularly fond of Virek, but the man is his patient and and employer,
so he is respectful and protective.