Gedoll Ridoll is a louse-like alien that absorbs energy from machines or living things with his mouth-like hands. He can also absorb RX's power that used to attack him. He even made RX powerless by absorbing the power of King Stone when RX was trying to use King Stone Flash. When he nearly killed RX, Colonel Dasmader suddenly appeared and want to kill RX before he did. When he try to stop Dasmader, Dasmader attacked him and made him become small. Gedorian sacrificed his life energy to power it up again. He was destroyed by RX's Revolcane. He was the last alien monster.
- Blue-Fanged Louse, his counterpart from Saban's Masked Rider.