In Liar game: Final Stage, Players are encouraged to trust each other to win the tournament. However, a mysterious player named X is secretly plotting to sabotage everyone of their chances to win the LGT.
| Actor | Role |
|---|---|
 Erika TodaKanzaki Nao | Kanzaki Nao |
 Shota MatsudaAkiyama Shinichi | Akiyama Shinichi |
 Megumi SekiYukina Takeda | Yukina Takeda |
 Michiko KichiseEri Samukukwon | Eri Samukukwon |
 Seiichi TanabeArata Sendo | Arata Sendo |
 Kosuke SuzukiYuji Fukunaga | Yuji Fukunaga |
 Yoshiyoshi ArakawaJiro Nishida | Jiro Nishida |
 Mari HamadaMai Sakamaki | Mai Sakamaki |
 Soko WadaKoichi Eto | Koichi Eto |
 Kento NagayamaSatoshi Kuji | Satoshi Kuji |
 Kazuma SuzukiNorihiko Yokoya | Norihiko Yokoya |
 Ikkei WatanabeMitsuo Tanimura | Mitsuo Tanimura |