Yes, they are brothers. Rey Mysterio's real name is Oscar Gutierrez. Sin Cara's real name is Luis Urive. But they cousin brothers.
yes
yes sin cara and Rey Mysterio are friends
yes sin cara is mistico he has just changed his name
yes sin cara and Rey Mysterio are friends
yes sin cara is on wwe 12 i have seen him on the roster.
Yes he is.
yes
yes
sin cara beat dark sin cara it was a mask on mask mach.sin cara won the mach with a pin 1.... 2..... 3......BY: JORDON BUSH
Yes
Yes