The following characters have already appeared: Ambessa, Caitlyn, Ekko, Heimerdinger, Jayce, Jinx, Singed, Vi, Viktor.

A character appears if they have screen time under their champion name (e.g. Singed) or as their usual appearance but unnamed (has not happened yet, but speculated to happen with <spoilers>Vander as Warwick<spoilers>).

If a new champion is announced before the airing of Season 2 Act 3, then they can be bet on.