Masaharu Funaki is a Japanese actor, mixed martial artist and professional wrestler known professionally as Masakatsu Funaki , who has previously wrestled in All Japan Pro Wrestling (AJPW), New Japan Pro-Wrestling (NJPW), Pro Wrestling Fujiwara Gumi (PWFG), Newborn UWF (UWF), and Wrestle-1 (W-1). He is also the co-founder of Pancrase, one of the first mixed martial arts organizations and non-rehearsed shoot wrestling promotions. Funaki was also Pancrase's biggest star; Josh Barnett described him as the "symbol of Japan", Frank Shamrock labeled Funaki "the golden boy" of Pancrase, and Guy Mezger called Funaki "hands down the smartest and most skilled fighter in Pancrase next to Ken Shamrock".

Keiichi Yamada , better known as Jushin Liger and later Jushin Thunder Liger , is a Japanese retired professional wrestler and mixed martial artist, currently signed to New Japan Pro-Wrestling (NJPW). He is the longest-tenured member of the NJPW roster, having wrestled for the company since his debut in 1984 until his retirement in January 2020. Throughout his career, which spanned three-and-a-half decades, he wrestled over 4,000 matches and performed in major events for various promotions across the globe.