against the Challengers of the Unknown to obtain a wizard's deadly device. Chang – An Asian mastermind. Dakyab – An alien tyrant. Dane Cary – A criminal that was sabotaging the filming of Connie Baylor's latest movie. Darius Tiko – A scientist who discovers a time cube that lets him travel to the past and future. Dekkar – A villain who once used a machine to steal the memories of the Challengers of the Unknown. Dimension Man (D-Man) – A criminal scientist who had the ability to teleport and access other dimensions. Dr. Fenton – A scientist who once kidnapped June Robbins. Dr. Heathcliff Monroe – A scientist who worshipped M'nagalah. Dr. Heller – A Neo-Fascist who the Challengers of the Unknown encounter on a deserted island. Dr. Manning – A scientist who ends up turned into a giant, super-strong, rampaging caveman. FX-1 – A robot that goes independent and ends up going on a rampage when struck by lightning. Gargoyle – "Gary Doyle" is a roof-climbing villain who meets a blind girl and planned to pay for her surgery through whatever way he can. General Tolek – A Tyran who led his kind to evade Earth. Gurk – A criminal collector that once hired Multi-Man to help him find three pieces of a golden turtle statuette. Hillary Mycroft – A criminal who sought to reassemble a sorcerer's apparatus. Iron Dictator – An other-dimensional version of Adolf Hitler recruited by the Dimension Man. Jacquard – A criminal that once challenged the Challengers of the Unknown. Karnak – A criminal who used potions to create monsters. Korba – A "man without a country" who enslaves people on an island to build his "world". Krager – A criminal mastermind with a hook for a left hand. Kubagy – An alien criminal who came to Earth to steal its chlorine in order to power his robot. League of Challenger-Haters – A group of enemies that each fought the Challengers of the Unknown before joining together as this group. Drabny – A villain who steals inventions from the future in order to take over the present. He was later a member of the League of Challenger-Haters. Kra the Living Robot – A tyrannical robot who enslaved the planet Zuna. He was later a member of the League of Challenger-Haters. Multi-Man – A supervillain who gains a different form every time he dies. He was