Later, the puppet-legged Bran Stark discovers he has a whole host of magical mind powers, including the ability to see his father in the past. He is told he can only visit the past and not influence it, but Bran also has an even mightier super power: He can take control of people and animals for brief periods of time. So, who's to say he couldn't beam his psychic brain meat into someone else's head while on one of his time-hopping sojourns? Because, if so, that unlocks some pretty weird possibilities.
Such as riding a guy with a physique like Shaq and the vocabulary of a Pokemon.