Marko is Marjo's brother who lives in Egypt. He has made only one appearance in MarioMario54321's videos so far, in Marjo's Cookie Vault. He owns a pyramid filled with cookies, and wanted Marjo to give back the cookie vault entrance that he gave him to protect. But Lily finds it and takes it away and eats all the cookies in it, but then the Cookie King returns and takes over Whomp's Fortress. After the Cookie King was defeated, there were enough leftover cookies to fill the cookie vault. He also owns the lolipop vault, which was robbed by Marne the Cat. He took both of those vaults away and left behind a cake vault, as revealed in Enter Mowai.