Robbe looks like he has been kicked a few too many times in the head.  His bald pate atop his 6-foot frame gleams when he is allowed to attend to keeping it shaved.  Thin but solidly built, Robbe's left eye is always half-closed.  Even without the scars on his face, arms and legs no one would ever refer to Mutt as "good looking."  His bent and slightly bulbous nose gives a menacing appearance.

Robbe is rarely seen without his plate armor, a buckler and at least one great weapon.  Some call him the White Knight.  Those who know him understand that he is dedicated to Verena.