Please note: This page concerns only the character’s comic-book appearances.
When Dilton Doiley tested his experimental “Portal-Porter” device to create portals to alternate universes, he opened a small “window” in the locker of Brittany S. Pierce, a high school cheerleader in the “Glee-niverse,” a parallel universe with many similarities to Dilton’s home of Riverdale. The scatterbrained Brittany did not fully understand Dilton’s explanation of the parallel worlds, but came to regard him as an “imaginary friend” and told him all about her life in Lima, Ohio.
Eventually, Dilton was ready to physically travel to Brittany’s universe. Unfortunately, just at the critical moment, a football thrown by Chuck Clayton accidentally crashed through the window of Dilton’s lab, damaging the controls. As a result, instead of just Dilton being transported to Brittany’s world, several people from both worlds wound up switching universes; Brittany was among those who were teleported to the world of Riverdale.