Lothor

Kiya Watanabe, better known as Lothor, is a major antagonist in the Power Rangers franchise and the main antagonist of Power Rangers Ninja Storm as well as the two-part Power Rangers Dino Thunder episode "Thunder Storm". He is the disowned brother and uncle and archenemy of both Sensei Kanoi and Cameron "Cam" Watanabe the Green Samurai Ranger.

He was portrayed by the late Grant McFarland (who also played Sensei Kanoi Watanabe in his human form and voiced his guinea pig form).