The evil leader of the Rulons, Krulos is a frog-like being that has one goal on his mind – world domination. In order to do that, Krulos must first eliminate the Dino-Riders, a task that he is happy to oblige. Krulos would like nothing more than to destroy his rival, Questar. Krulos runs a tight ship and rules by fear. None of his soldiers dare challenge his authority and anyone that does is forced to quickly rethink such a thought.

Another one of Krulos’ top officials, Hammerhead is the leader of the Sharkmen. Hammerhead is a very strong and capable general that can battle with the best of them. Hammerhead is less outspoken than Rasp but is arguably more capable and beneficial to the Rulon cause.

One of Krulos’ generals, Antor is the leader of the Antmen, a group of strong workers that make up for their lack of intelligence with their work rate and endless loyalty. Antor often vies for second in command status with Hammerhead and Rasp but typically does not get much recognition. Antor often has to be the one to put things in perspective when Rasp and Hammerhead argue over who the better general is.

Of all of Krulos’ generals, Krok seems to be the most competent and mature. He doesn’t get into arguments with the others about who the better general is and instead, focuses on serving his master, Krulos. Krok has pledged his undying loyalty to Krulos and will stop short at nothing in order to make Krulos happy

Tyrannosaurus rex is one of the largest land carnivores of all time; the largest complete specimen, FMNH PR2081 ("Sue"), measured 12.8 metres (42 ft) long, and was 4.0 metres (13 ft) tall at the hips.[2] Mass estimates have varied widely over the years, from more than 7.2 metric tons (7.9 short tons),[4] to less than 4.5 metric tons (5.0 short tons), with most modern estimates ranging between 5.4 and 6.8 metric tons (6.0 and 7.5 short tons).

If you think this sounds scary then imagine him with lasers!