He then appears in I Am Winston Churchill, where he and his friend Charlie make a castle out of modeling clay at the Hands On Center. They leave Brad Scott out and don't listen to his ideas until he decides to speak up for himself. He attends school along with Xavier, Yadina, Brad, Harper, Brian, Charlie, Tyler, and Jamie.
He is only named in the credits and closed captions when speaking to Charlie.
Jin shares his name with a South Korean singer from BTS, Kim Seok-jin, otherwise known as Jin.
He is voiced by Lucas Kalechstein.