These dog and cat names are derived from characters featured in the movies Back to the Future (1985), Back to the Future Part II (1989), and Back to the Future Part III (1990).
- Biff (Full name: Biff Tannen; overgrown bully and nemesis of George McFly, Marty’s father)
- McFly (Full name: Marty McFly; son of George McFly, travels into the past and future via a time machine)
