Margaret’s Cousin | Regular Show | Cartoon Network

Margaret introduces to Mordecai and Rigby her cousin John. Subscribe to the Cartoon Network UK YouTube channel: Visit the Cartoon Network UK website: Welcome to the official Cartoon Network UK YouTube channel, the place where you can watch funny videos, clips with theme tunes and songs and interactive game plays from The Amazing World of Gumball, Adventure Time, Ben 10 Omniverse, Teen Titans Go!, Mixels, Regular Show, Batman, Lego Ninjago, Uncle Grandpa, Steven Universe, Clarence and many others. Get ready to laugh out loud and join us by subscribing to the channel!