Bowser Junior

Robert Bernard Junior Koopa, also known as Bowser Junior or simply as Junior, is one of the two main protagonists (alongside Mario) of the SuperMarioLogan series.

He is the son of Bowser. He is also the main antagonist of Mario and Luigi's stupid and dumb adventures episode 5 (season 2). He is voiced by the creator of the series, Logan Thirtyacre, who also voiced Mario, The Rat, Waluigi and Koopa Troopa.