A special preview special released a few weeks before Kamen Rider Gavv's premiere, which revealed new details and unreleased footage featuring the next Kamen Rider, Kamen Rider Gavv.
Self - Shouma / Kamen Rider Gavv
Hidekazu Chinen
Self - Hanto Karakida / Kamen Rider Valen
Yusuke Hino
Self - Sachika Amane
Nozomi Miyabe
Self - Lango Stomach
Takashi Tsukamoto
Self
Teruaki Sugihara
Self
Go Sakabe
Self
Sekai Yamamoto
Self
Taiki Sato
Self
Natsuki Sawamoto
Self
Leiya Seguchi
Self
Natsuki Hori
Self
Keito Kimura
Self
Yusei Yagi
Self
Sota Nakajima
Self - Narration (voice)
Shintaro Asanuma