Professor G is the Scientist who raised Duo after the Maxwell Church attack. He is the one who built the Gundam Deathsythe and helped in the creation of Vayeate and mercurius and the Deathsythe Hell and Altrn Gundam.  He has shaggy mop of hair and a large white nose.  he is also an expert in Stealth combat.  he is from the L2 Colony Cluster.