The Dark Lord Bill Trinen is the main antagonist of Miitopia for the first few episodes of the series. He is the source of all the monsters in Miitopia and a seemingly unstoppable force for evil.
He was later replaced with Mike Love for the Dark Lord role.
The Mii is based on the marketing manager of Nintendo of America of the same name, who is also the Japanese-to-English translator.
He makes several appearances in which he intimidates Vinesauce and his party. In episode 3 he was replaced with the Dark Lord Mike Love.