Trivia / OOO, Den-O, All Riders: Let's Go Kamen Riders

• Acting for Two: Hiroshi Miyauchi comes back to voice both Kamen Rider V3, and Kaiketsu Zubat.
• Role Reprise:
  • On the heroes' side: Despite the amount of Fake Shemps there's a surprising amount of genuine reprisals. Hiroshi Fujioka and Takeshi Sakaki reprise their roles as the Double Riders, Hiroshi Miyauchi reprises his roles of Kamen Rider V3 and Kaiketsu Zubat (Although in voice only appearances), Tomokazu Seki sort of reprises his role as Kikaider, albeit the Live Action version and Phillip and Shotaro are portrayed out-of-suit by Masaki Suda and Renn Kiriyama for their cameo.
  • On the villains' side: First and foremost, The Great Leader is voiced by Gorō Naya (Which would be his last role before his death), Seizō Katō reprises his role as General Jark for the last time before his death after previously reprising it in Decade, Hidekatsu Shibata also reprises his role as General Shadow after 36 years, finally, Shōzō Iizuka reprises his role as High Priest Darom.