Mario

“So I may have burned an oven or two. What’s the big deal?” - Mario, Revenge is a Dish Best Served Cold
Mario was a contestant on Total Drama Mushroom Island, Total Drama Mushroom Action, and Total Drama Mushroom World Tour. He also competed on the Total Drama Mushroom: Winter Special.

Personality
Mario is competitive, self-centered, and demanding, as shown in Total Drama Mushroom Action. In subsequent seasons, his actions have become less dramatic and he's learned to be more subtle.

Total Drama Mushroom Island
Mario began the game on the Killer Mushrooms, alongside his nemesis Bowser. From the get-go, Mario was shown off to be a powerful and somewhat strategic player. He spent most of his time fawning over Peach and fighting with Bowser. Mario lasted long enough to make it to the merge, but after Bowser won first the challenge Mario was voted out. He later appears in the finale cheering on the finalists.

Total Drama Mushroom Action
Mario returned for Total Drama Mushroom Action as a member of the Killer Tanooki Leaves. After defeating Bowser early on, Peach began to get sick of him and tricked him into voting himself off. He returned just after the merge and assumed a villainous personality. He was finally voted out at the final four after settling things with Peach. He appears as a spectator in the Aftermaths of this season and the finale.

Total Drama Mushroom World Tour
Mario returns for the third time in Total Drama Mushroom World Tour. He started the game in the minority of the Mega Men after being one of the last chosen. His previous season of villainy and overall uselessness caused him to be the second voted out. He appears as a spectator in the subsequent Aftermaths and the finale. He also hosts the challenge in Dirty Slided Test.

Total Drama Mushroom: Winter Special
Mario competed in the Total Drama Mushroom: Winter Special as a member of the Snow Stars. He forged a friendship with DK but accidentally assumed Peach was still into Bowser. After she was eliminated, his guilt affected his game and he was eliminated in the same episode.