It always seemed to me that even if they aren't related by blood, they seem to belong to the same race (I don't know, maybe some sort of orc-esque tribe?) they are much more similar to each other in the SCD remakes than the GG originals. At least that the impression I got.
Also, is there an opponent control code that doesn't involve a cleared game save? I'm trying to help Tor by ripping the maps from SFCD and it would be much, much faster if I could skip the need to battle.