Major Domo is Mojo's right-hand man. Possessed of a sarcastic wit, Major Domo is one of the only people who can get away with criticizing Mojo, as Mojo is usually too distracted to notice.
When Magneto and Polaris created a massive electromagnetic pulse on Mojoworld, it severed Mojo's ties to the Mojoverse and stranded he and his followers in the Prime Marvel Universe. There they established a new base in the sewers beneath the Empire State Building with plans to begin broadcasting the Mojo News Network.