Dartz and the others also apparently play Dungeons & Dragons according to the spam comments on Marik's YouTube account.
As of Marik's Evil Council of Doom 3, he is voiced by Takahata101 and his hair changes color whenever the shot changes. Dartz then began speaking with a strong Cajun accent and when he told his minions to duel Marik, which they mistook it as to "do" Marik instead. Later, he ordered his minions to cut Yugi Muto's and Mai Valentine's decks in half. The henchmen, however, misinterpreted "deck" as "d*ck", which confused Yugi when they called him.
Overall, his character is a combination of Coiffo, the main antagonist of Perfect Hair Forever, and Boomhauer from King of the Hill, in terms of appearance and mannerisms. Also, ironically, he can't understand anything that Zombie Boy says.