Kamen Rider Legend
Tokiwa Ichika
- son of Tokiwa Sougo, and Heir to the Rider throne
love interest: Apple White
Kamen Rider Legacy
Hisashi Kaoru
Son of Hisahi Kaito, and Mikoto
Love interest: Briar Beauty
Kamen Rider Tri-Gen
Kadoya Daisuke
Adopted son of Kadoya Tsukasa
Love interest: Darling Charming
Kamen Rider Chronicle
Myokoin Mayumi
Daughter of Geiz and Tsukuyomi
Love interest: Chase Redford
Villain
Nega-Rider Magnus
Minions from different Kamen Riders worlds
Shockers syndicate
Neo Shocker Grunt
Another Riders (secondary and tertiary)