Mmm. You, me, Bakura-kun, Malik-kun... I think that's all of them. There were people named Kaiba and Pegasus here at one point, but as far as I can tell, they've just disappeared.

The England Duelists are duelists themselves, but they don't seem to actually duel all that much. I think they have their own style they focus on, but that's all I know.