Nathan Obiajunwa is one of the few teachers of Springsville Institute for the Gifted. According to himself he is the "answer to the trope 'one foreign teacher per school'". He arrived to the school as a program of exchange from Nigeria and has still problems struggling with the language. Despite majoring in English, he often teaches Potion Making as a form of chemistry. His knowledge about the US is based only in the films he watched as a teen.