Trivia:I think Master Chen might be the only villain to not appear in any intros as an actual person (of the OG series, so no DS)

I think Pythor had to have appeared in the Crystallised intro due to him being a member of the Council of the Crystal King. Garmadon appeared in Seasons 3 and 4, as a good guy then in Seasons 8 (via silhouette) and 9 as a bad guy. The Overlord in Season 3 and in Crystallised too. Morro at the end of the intro in Season 5. Nadahkhan at the end of the intro in Season 6. Yang technically doesn’t in DOTD but I don’t classify him as a big bad villain rather than a simple antagonist? Both Krux and...