Ted Jan Roberts

When Ethan's older brother Greg is found dead, the police rule the case a suicide, but Ethan suspects foul play stemming from Greg's recent involvement with a martial arts team called the Scorpions. Ethan is also accomplished at martial arts, and he determines to join the Scorpions as a means of learning what really happened to Greg. (imdb)

Stan Dryer, a teen, afraid to even ask a girl to the prom, finds courage and extreme martial arts skill when he is given a ring by an old man he tried to save from a group of attackers. The ring is a mate to a ring stolen by a double dealing art thief who had been hired to steal it by a criminal mastermind who wanted it for its mystical powers. (imdb)

Kevin Ryan must protect himself and his uncle from the TV studio that is producing his hit martial arts show when the execs try strong-arm tactics to keep Kevin from leaving. (imdb)

The series began with the main character, Dex, escaping the Plague Patrol with a small group of Edenoites rebels, before leaving for Earth, the next target of his sinister uncle Count Dregon who ruled Edenoi with an iron fist after displacing Dex's grandfather King Lexian who also gave Dex the Masked Rider powers (where the powers came from is a mystery, although they have been kept for some time by Edenoi's champions). (wikipedia)