Woz

Prophet Woz is a zealous supporter of Oma Zi-O and a mysterious character in Kamen Rider Zi-O.

Loyal to the future Oma Zi-O, Woz seeks to guide his past self Sougo Tokiwa into becoming him. However, as Sougo begins to act against his wishes, Woz allies with the Time Jackers to get the timeline back on track.

Woz is also the one who reads out the next episode previews from his book at the end of each episode.

Origin
At some point, Woz was friends with Geiz until something happened between them that caused the two to become fierce enemies.

Present
Woz appeared before Sougo to warn him of a "strange red robot" before disappearing. When Sougo encountered Another Build, Woz appeared again and offered him the Ziku-Driver, which Sougo used to transform into Kamen Rider Zi-O to fight the Another Rider.