The tenth night of New Japan Cup 2021 took place on March 16, 2021, at Korakuen Hall in Tokyo, Japan, and featured two quarterfinal matches.
| Actor | Role |
|---|---|
 Kenta KobayashiKENTA | KENTA |
 Shin TakagiShingo Takagi | Shingo Takagi |
 Toru YanoToru Yano | Toru Yano |
 Takaaki WatanabeEVIL | EVIL |
 Tetsuya ShimizuBUSHI | BUSHI |
 Seiya SanadaSANADA | SANADA |
 Jeffrey CobbJeff Cobb | Jeff Cobb |
 William OspreayWill Ospreay | Will Ospreay |
 David Stephen Finlay IIIDavid Finlay | David Finlay |
 Joseph RobinsonJuice Robinson | Juice Robinson |
 Aaron HenryToa Henare | Toa Henare |
 Fale SimitaitokoBad Luck Fale | Bad Luck Fale |
 Steven OwensChase Owens | Chase Owens |
 Jamie WhiteJay White | Jay White |
 Gabriel McMenaminGabriel Kidd | Gabriel Kidd |
 Yota TsujiYota Tsuji | Yota Tsuji |
 Yuya UemuraYuya Uemura | Yuya Uemura |
 Hiroyoshi YamamotoHiroyoshi Tenzan | Hiroyoshi Tenzan |
 Satoshi KojimaSatoshi Kojima | Satoshi Kojima |
 Yuji NagataYuji Nagata | Yuji Nagata |