Doctor Zone is the main character of the eponymous show within a show, voiced by Jemaine Clement. He is based on the titular character from Doctor Who, as he travels through time. The actor who plays Dr. Zone, in-universe, is named Orton Mahlson.
- The present on Dr. Zone's hand is a similar shade of blue to the TARDIS in Doctor Who.
- Part of Doctor Zone's backstory is similar to the origin of Superman.