Demitri Maximoff is a vampire from the "Darkstalkers" franchise. Demitri serves as a major antagonist in Super Smash Bros. Crossover. Demitri first appears in Season 14 after getting called by Marik Ishtar from Yu-Gi-Oh Abridged to join the series. However, Demitri is right next to Marik, which at first causes Marik to think he had the phone on speaker, but then sees him right there. Demitri asks where Morrigan Aensland is, but Ganondorf interrupts him, saying he must defeat the Heroes of Legend first. While Demitri intially refuses, Marik says that Morrigan is with Naruto Uzumaki and Psycho Kirby, causing him to change his mind and go to their location. Despite his power, Demitri is defeated by Yami Bakura. Demitri reappears after a long absence as an ally of Yami Bakura.
- It is unknown how Demitri got to the Smash World so quickly.
- Demitri has respect for Yami Bakura, which is why he joined him.