Characters have always been a big part in the Warriors games, with Warriors All-Stars offering a total of thirty characters to choose from, with them being from a number of Koei Tecmo series. In fact, all but three of the characters are from other series, with the other three being original ones.
The three original characters are named Tamaki, Shiki and Setsuna. The other characters will be aligned with the three original ones, as part of their faction.
| Character | Faction |
|---|---|
| Tamaki | Dynasty Warriors, Toukiden, Opoona, Atelier |
| Shiki | Samurai Warriors, Ninja Gaiden, Haruka: Beyond the Stream of Time, Nioh |
| Setsuna | Dead or Alive, Deception, Nights of Azure, Rio, Samurai Cats |
| Series | Characters |
|---|---|
| Atelier | Plachta, Sophie |
| Dead or Alive | Honoka, Kasumi, Marie Rose |
| Deception | Laegrinna, Millennia |
| Dynasty Warriors | Lu Bu, Wang Yuanji, Zhao Yun, Zhou Cang |
| Haruka | Darius, Hajime Arima |
| Nights of Azure | Arnice, Christophorus |
| Ninja Gaiden | Ayane, Ryu Hayabusa |
| Nioh | William Adams |
| Opoona | Opoona |
| Rio | Rio |
| Samurai Cats | Nobunyaga Oda |
| Samurai Warriors | Mitsunari Ishida, Naotora Ii, Yukimura Sanada |
| Toukiden | Horo, Oka, Tokitsugu |
