Just using a different name and a mask isn't going to get him closer to Char in terms of character. And neither is Ribbons close. Ribbons simply wanted to controll it all and Graham was ever the noble warrior, even to the point of refusing to participate in battles that went against his sense of honor (with the excuse of it "not amusing him", like not destroying the overloaded and thus helpless 00 Gundam during Major Lynts "lesson" to Mankin).
While Char did oppose the gassing of colonies in Zeta, he was trying to bomb the Earth into an ice age during Char's Counterattack.
Char and Zechs on the other hand had the whole thing going for them with their family/country being peacefull, but being destroyed by others, which they try to infiltrate to exact revenge. And Le Kluze is just plain nuts and trying to destroy mankind.... which by itself is a departure from the Char type by itself I guess.
