Itachi in Chinese clothes before Dosu.

...Okay.

the point I was trying to make is that Itachi (and many other characters) have got a seasonal alt before Dosu got playable in the game at all

Suit Gaara is the one that still frustrates me the most after all these years because it's just so nonsensical. You can't tell me that literal Gaara with friggin' CONTEMPORARY FORMAL CLOTHES—which dare I say don't exist at all in the Naruto universe—is more important than Dosu.