Power Rangers S.P.D.(Space Patrol Delta) was the thirteenth incarnation of the Power Rangers television series, based on the Super Sentai series Tokusou Sentai Dekaranger (Special Investigation Squadron Detective Ranger). A Japanese dub of S.P.D. was aired on Toei's digital television channel in Japan starting in August 2011, with two DVD volumes released on August 5. It features the original Japanese Dekaranger cast members dubbing over the voices of their American counterparts.