Bull Curry is recognized as the originator of the hardcore style predating even legends such as The Sheik and Abdullah the Butcher.
Buchu: With an appearance resembling professional wrestler Abdullah the Butcher, Buchu is a big sumo wrestler who uses a leaping motion to fly over Oolong, and as a middle level attack against him.
Abdullah II of Jordan | Abdullah Ibrahim | Abdullah Ahmad Badawi | Ali Abdullah Saleh | John Butcher | Abdullah Gül | King Abdullah | John Butcher (musician) | Abdullah | Mohd Azraai Khor Abdullah | Jim Butcher | Abdullah the Butcher | Abdullah I of Jordan | Sheikh Abdullah | Abdullah of Saudi Arabia | Abdullah Al-Roumi | The Jazz Butcher | Paul "Butcher" Vachon | Bassam Abdullah bin Bushar al-Nahdi | Abdullah CD | Terry Butcher | Omar Abdullah | Mohammed Abdullah Hassan | King Abdullah University of Science and Technology | Abu Abdullah al-Shafi'i | Abdullah Öcalan | The Chronicles of Riddick: Escape from Butcher Bay | Roland Butcher | Pat Butcher | Jake Butcher |
Busick was involved in many feuds with the likes of Abdullah the Butcher, Bruiser Brody, Mr. Wrestling II, Joel Deaton and a host of other well known wrestlers.
On January 4, 2010, Iizuka teamed with fellow CHAOS members Yano and Ishii and Abdullah the Butcher against Riki Chōshū, Masahiro Chono, Manabu Nakanishi, and Terry Funk.
Samoa Joe from TNA, Harlem Heat 2000 (Big T and Stevie Ray) from World Championship Wrestling, and Tammy Lynn Sytch, Christy Hemme and Daivari from World Wrestling Entertainment have all made appearances for the promotion as well as older wrestlers such as Abdullah the Butcher, Kamala and "Hacksaw" Jim Duggan, the latter holding the promotion's heavyweight title in 2003.
These characters were also given extravagant profiles in the game's official strategy guide; Abdullah the Butcher, renamed "Saladin," is described as a former Afghan Secret service operative who refused orders to assassinate Mikhail Gorbachev.