Aside from Niramu, also returning to this spin-off are: Fuku Suzuki as Ziin/Kamen Rider Ziin, Seia Yasuda as Samas, Kokoro Aoshima as Tsumuri, and Shihou Harumi as Archimedel. Written by Kamen Rider Geats series head writer Yuya Takahashi and directed by Koichi Sakamoto (Kamen Rider Fourze), Geats Extra: Kamen Rider Gazer is set to premiere this 2024 exclusively on TTFC.