The first night of G1 Climax 30 took place on September 19, 2020, at EDION Arena Osaka in Osaka, Japan and was headlined by Kazuchika Okada vs. Kota Ibushi
| Actor | Role |
|---|---|
 Kazuchika OkadaKazuchika Okada | Kazuchika Okada |
 Kota IbushiKota Ibushi | Kota Ibushi |
 Shin TakagiShingo Takagi | Shingo Takagi |
 Jamie WhiteJay White | Jay White |
 Tomohiro IshiiTomohiro Ishii | Tomohiro Ishii |
 Minoru SuzukiMinoru Suzuki | Minoru Suzuki |
 Jeffrey CobbJeff Cobb | Jeff Cobb |
 Taichiro MakiTaichi | Taichi |
 William OspreayWill Ospreay | Will Ospreay |
 Yujiro TakahashiYujiro Takahashi | Yujiro Takahashi |
 Yota TsujiYota Tsuji | Yota Tsuji |
 Yuya UemuraYuya Uemura | Yuya Uemura |
 Kevin FooteKevin Kelly - English Commentary | Kevin Kelly - English Commentary |
 John Raymond RiveraRocky Romero - English Commentary | Rocky Romero - English Commentary |