While testing the Birth X Driver, Shintaro Gotou is shunted into a parallel world filled with many familiar faces in unfamiliar places. Can he master the secrets of the Birth X Driver and return home?
as Shintaro Goto / Kamen Rider Birth X
as Akira Date
as Erika Satonaka
as Kousei Kougami
as Hina Izumi / Kamen Rider OOO
as Eiji Hino
as Dr. Ankh
as Uva
as Kazari
as Mezool
as Gamel
as Chiyoko Shiraishi / Kamen Rider Birth
as O Scanner (voice), X Unit (voice)
as Birth Driver (voice)
