Questar is the leader of the Valorians in the Dino-riders cartoon. He flees the evil forces of the Rulons and wants to rebuild a peaceful civilization on prehistoric earth. In the cartoon he rides a Deinonychus or he commands his troops from the Diplodocus's command pod. Wikipedia
The definitive Wikipedia entry for Questar. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Questar_%28character%29