Seemingly, from reading the pasuk in the megillah;
Esther 2:6 אֲשֶׁר הׇגְלָה מִירוּשָׁלַיִם עִם־הַגֹּלָה אֲשֶׁר הׇגְלְתָה עִם יְכׇנְיָה מֶלֶךְ־יְהוּדָה אֲשֶׁר הֶגְלָה נְבוּכַדְנֶצַּר מֶלֶךְ בָּבֶל׃
It sounds like it is talking about Mordechai, but on sefaria hereit says its referring to Kish.
Furthermore, the Gemara seems to insinuate that it is indeed about mordechai.