Finbar Gullvan is Old Man of the Resistance, an elderly peasant who has participated in two previous uprisings and has the battle wounds to prove it. As a young man, he fought in an ambush against the local orcs but was grievously wounded, losing an arm. He was still recuperating when the rest of his fellows were wiped out by the regional regiment. He survived and helped establish a new generation of Resistance fighters a generation later. He was second in command of that attempt at rebellion. When the leader died early, Finbar froze up and managed to get the remaining forces killed. He himself barely survived.
Another generation later, and Finbar is older and wiser. He still hates the orcs and believes strongly in the Resistance. He recognizes that he is neither a warrior not a general, but he is an experienced survivor with a 40 year history of evading the orc overlords. He's also an avid collector of rumors and scraps of history about other attempts at rebellion, and is the closest thing the Resistance has to a historian.
Finbar now serves as a senior advisor to the latest generation of the Resistance. He keeps his own counsel, but can be relied upon to provide clear ideas for what to do next if asked. He publicly admits his inability to fight or general, but he is clever about hiding things and moving them from place to place without attracting the attention of the orcs, and what resources the Resistance has are mostly due to his careful work.