Mary Kate, called MK for short, labeled The Outrageous and Underestimated, is a supporting antagonist in the Total Drama franchise, serving as supporting antagonist of Total Drama Island 2023 and the secondary antagonist in Total Drama Island 2024.
She is a narcissist Vietnamese girl who joins Total Drama, bent on winning the million dollars prize like every contestant. However, like all previous antagonists, she is willing to resort to any kind of dirty tactics such as lying to avoid elimination and make her way into the final at all costs.
She is voiced by Kimberly-Ann Troung.