Character Analysis
The books seem the least interested in Gaheris, who is the oldest G-boy. We pretty much only know that he's "stolid" and quiet (Q.7.16), "dull" (K.41.4), and "a bit of a fool" (C.2.3).
He's not blonde like the rest of the clan, so he's closest in looks to Gawain: burly and red-haired. But he's less red, less strong, and less stubborn. Also he's much less memorable. Yawn.