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...
奥野壮
as Sougo Tokiwa / Kamen Rider Zi-O
押田岳
as Geiz Myoukouin / Kamen Rider Geiz
大幡しえり
as Tsukuyomi
渡邊圭祐
as Woz / Kamen Rider Woz
稲葉友
as Go Shijima / Kamen Rider Mach
Chris Peppler
as Krim Steinbelt
前野朋哉
as Nobunaga Oda
若林時英
as Gyuuzou
Issa Hentona
as SOUGO Tokiwa / Kamen Rider Barlckxs
Eru Aoba
as Clara Steinbelt
Caleb Bryant
as Pietro
小山力也
as Oma Zi-O (voice)
