Alright, excellent chapter, one of the best yet.
Here are the actual inspirations for some of the people so far: (note: Brazillian names that begin with R are pronounced with an "H" sound, so Renzo = Henzo).
Hideo Kano
Name: = Jigoro Kano (founder of Kodokan Judo)
Inspiration: Mitsuyo Maeda doubtlessly (the man who brought Judo to Brazil, allowing them to found BJJ). Also nicknamed Conde Koma (lit. The Count of Combat).
Wallad Barbosa
Name: = Wallid Ismail (famous BJJ practicioner) + Edson Barboza ( ranked #10 UFC lightweight (MMA), recently announced a move to featherweight)
Inspiration: Inflated record comes from Rickson Gracie (who got it that high by counting sparring), combination of BJJ and striking likely comes from Renzo Gracie, addition of taekwondo brings to mind Barboza who has a black belt in TKD and a brown belt in BJJ.
Carl Grace
Name: Carl Grace = Carlson Gracie, or possibly Carlos Gracie Jr. or Sr.
Elio Dacascos
Name: = Helio Gracie (super important to development of BJJ) + Mark Dacascos (American actor + amateur martial artist)
NB: The history of Vale Tudo they present has almost zero relation to real life