The Quartzers, calling themselves the Wardens of Time, appear after Sougo Tokiwa has collected all of the Heisei Era Ride Watches. A grand conspiracy behind the birth of the King of Time becomes ever clearer...
Sougo Tokiwa / Kamen Rider Zi-O
Geiz Myoukouin / Kamen Rider Geiz
Tsukuyomi
Woz / Kamen Rider Woz
Go Shijima / Kamen Rider Mach
Krim Steinbelt
Nobunaga Oda
Gyuuzou
SOUGO Tokiwa / Kamen Rider Barlckxs
Clara Steinbelt
Pietro
Oma Zi-O (voice)
Soutarou Tokiwa
Namie Tokiwa
Young Sougo
Kamen Rider Zero-One (voice)
Takeshi Kinashi
Jougen / Kamen Rider Zamonas
Kagen / Kamen Rider Zonjis
Junichirou Tokiwa
