Kiva Andrews	Born September 14, 3012, Kiva is a military pilot an engineer who traveled back in time from over a thousand years ago, and is highly skilled in robotic and hand-to-hand combat. She is intelligent, tough, and fearless. She has a no-nonsense pesonality, but adopts a small sense of humor as the story goes along and seems to grow steadily more comfortable in present time. Orignally meant to be the pilot of Megas, she can no longer pilot it due to Coop's extensive modifications, and finds herself stuck in the present. Instead of piloting Megas herself, she triest to train Coop herself, who would usually rather eat, play video games, or tinker with Megas.
Jamie	Coop's best friend and slacker comic sidekick, Jamie, spends much of his time pondering schemes to use the Megas to get rich and hitting on cute girls (usually failing). He is a stark contrast to Coop, whose only thoughts tend to center around food. He appears to offer nothing of use during Megas combat other than criticism, but is almost always the first one to spot potential dangers, and his advice (usually ignored by fight-minded Coop) is generally prudent. Physically slight of build, Jamie would rather run away than fight; despite this cowardly nature, he always remains loyal to his friends and saves them in a few episodes. Even so, Coop actually has a gear marked Save Jamie. In the series finale, "Rearview Mirror, Mirror", an alternate dimension Jamie had a romantic relationship with Kiva, but it fell apart after Coop and Kiva became evil. This Jamie became the heroic, muscular, and deadly serious leader of the resistance against the evil Coop.
Gorrath	The leader of the Glorft, Gorrath followed Kiva and led a significant fraction of his military forces back in time to try and retrieve Megas; he not only failed, but found that he and his soldiers, like Kiva and Megas, were trapped in the present. Gorrath is a straightforward strategist, fond of overwhelming force or spectacularly destructive weapons, ramming Earth's moon into the planet itself being just one example. He dislikes failure with a passion, which he usually takes out on his second in command. Gorrath is fond of threatening to remove the "jhorbloks" of others. Gorrath, completely unwilling to accept that the "primitive monkeys" that are humans could defeat him, hates Coop and often launches attacks to try to kill him and reclaim Megas, but always fails in some way or other, usually because of sheer dumb luck on Coop's part. In the series finale, Gorrath almost decides to make peace with Coop after the two are forced to work together to defeat an evil Coop from an alternate dimension. In the process of shaking hands, Coop trips on a piece of debris and accidentally destroys Gorrath's army, thus ending any possible friendship. Gorrath appears to be more muscular than most of the other Glorft seen and also walks on two legs (these characteristics are also seen with a special group of Glorft guards in the episode "The Driver's Seat"). He also wears a full body mech suit that resembles the one he pilots.