The zany, egotistic, and very stupid evil leader of the Alpha Gang. Plans to use the dinosaur cards in his plans to rule the world. He also seems to know the history of these cards, though he was not the creator as the method was created by Dr. Ancient and Dr. Cretacia. He did invent the Move Cards with Dr. Ancient had been dissatisfied with. When Dr. Ancient and Dr. Cretacia wanted to return to the year 2126 to raise a baby Rex, he and Seth jettisoned their pods into the timestream and tried to do the same for baby Rex only for the intervention of Jonathan to prevent that. This accident caused the Alpha Gang to end up in the present day and the dinosaur cards were scattered throughout the Earth. He often sends Ursula, Zander and Ed to obtain dinosaur cards (which were scattered when his time machine exploded) for him while he stays in his lab on Zeta Point researching and experimenting with the dinosaur cards that he already has, unless it is a certain occasion. When his flunkies fail, he always berates them for their incompetence. He sometimes attempts to aid with some of his inventions, but as a running gag his inventions often explode. When he had a bad back from holding up Alpha Metal, he liked Seth&#039;s idea of having his grandchildren obtaining the Dinosaur Cards. In the battle against Zanjark, Dr. Z invented the Dino-Tectors so that the dinosaurs of the D-Team and the Alpha Gang can armor up.

Dr. Taylor was on a paleontology mission with his son, Max in Africa. Rex, Max's best friend, joins along as well. When Max had stumbled across some magic stone slabs with images of dinosaurs, the boys and their friend Zoe were being called out by the dinosaurs for help. It seems that an evil organization called the "Alpha Gang", led by the nefarious Dr. Z, traveled back in time to hunt down the dinosaurs so that they could take over the world by using those dinosaurs. It is up to Max, Rex, and their friend Zoe to travel around the world, defeating Dr. Z and the Alpha Gang while hunting down the dinosaurs. 
(Source: Wikipedia)

Eric Stuart is an American voice actor and musician who worked for 4Kids Entertainment, NYAV Post, and Central Park Media. Some of his most prominent dubbing roles include Brock and James in Pokémon from seasons 1–8, Seto Kaiba in Yu-Gi-Oh!, and Gourry Gabriev in Slayers.

A Spanish dubbing director. He likes "odd characters".

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The second season of Kodai Ouja Kyouryuu King: D-Kids Adventure. 
 
The Alpha Gang and the Ancients return. While the parents are talking, they are kidnapped by Gunenco, a member of the Zanjark Space Aliens. This causes the Alpha Gang and D-Team to join forces against the Zanjark Space Aliens in their plot to obtain the Cosmos Stones. Seth later returns as an ally to the Zanjark space aliens. Jark, the leader of the Zanjark, provides the dinosaur cards

Max is obsessed with dinosaurs. He knows his Tapejara from his Pteranodon and can find fossils better than a trained paleontologist. When he discovers a stone tablet that transports him to the age of dinosaurs, it's a dream come true--until it becomes a nightmare. An evil genius named Dr. Z has enslaved the dinosaurs so he can use their hidden powers to take over the world! Now Max has to defeat Dr. Z and his Alpha Gang to save the ancient beasts and life as we know it.
 
(Source: Viz Media)

Dr. Sonoida