Julius Erving, a.k.a. Dr. J, has a new teammate, and his name is… Jim Halpert? The basketball Hall of Famer will guest-star as himself on The Office, EW has learned. In the episode, Dr. J becomes an investor in the sports marketing business that Jim (John Krasinski) is trying to launch in Philadelphia, where Erving scored more than a few baskets as a 76er. And as you can see in the photo below, the 62-year-old legend winds up showing Jim a thing or two on the court.