Episode 57
probably the very first episode where yugi/yami duels kaiba the first time or when he is dueling pegasus in the first episode near the end of it.
Dark Paladin's first appearance was in episode 134, during Yugi's duel against Kaiba in the Battle City Finals. He appeared in episode 143, but this was a flashback. He was also summoned in episode 193, against Vivian Wong.
you can watch yugioh episodes at watchcartoononline.com.
Marik Ishtars first appearance in Yugioh was episode 201 or 202 in season 2.The episode is called "Mystery Duelist"part 1 and 2 for those who cant figure out the top:)
If you mean the cast of the first yugioh season, then yes. In the final episode of GX, Yugi battles Jaden but the final result of the duel was never shown. Also Kaiba showed up in one episode because he made the school, but I don't know which one. He also duels Trueman near the end of the series and is the last person in Domino after the attack. Pegasus shows up a few times and duels once against Cronos and Napoleon. Plus Mai and Jonouchi are referenced.
The Battle Begins
i think it does the one who also does for bakura in yugioh last season of first series of course
The first episode was The Pilot but the first on TV was The Power
yugioh-online.com it's either .com or .net. The only downside is your first ten duels are free, the rest you have to pay for. There is also the kaiba virtual duel system at seto-kaiba.com and there is the xenocreative.com dueling system which I like ^-^
It is called "When Pokémon Worlds Collide!""
The first time Grell and Sebastian do battle is in Black Butler Episode 5, and it is continued in Episode 6.
Chrome Dokuro first appears in episode 50 at the guardian of mist battle.