I have decided to call him Vabok. His childhood was a troubled one; when he was born without a beard, his father's grief could not be assuaged even by the fortress's legendary dining room. Vabok's father, a miner named Dumed, fell into a deep depression and began to drink sparingly. He frequently beat Vabok, and that caused the dwarf child to cling to his macedwarf mother, following her everywhere she went.
When he was 9 years old, he saw his mother die violently attempting to defend the fortress from a goblin siege. As he turned to flee from the goblins, a snatcher grabbed him. Fortunately, he was rescued by Thikud Cogurist, an axedwarf. Young Vabok adopted Thikud as a sort of foster father, to compensate for his dead mother and sober father.
Unfortunately, Thikud was destined to be torn apart by a bronze colossus two years later. Vabok, by then a Miner and Novice Mechanic, was at that time having an argument with his abusive father, Dumed. Seeing his son's grief stricken reaction to the news of Thikud's death, Dumed flew into a rage. Had he not raised his son as best he could, given his crippling deformity? Had he not cared for him, fed him, and taught him the importance of footwear? Dumed could not bear his ungrateful son's emotions, and fled to a far corner of the fortress.
The fight had made both of them realize something, however; despite their less than perfect relationship, they were father and son, and were united by a stronger bond than nearly any other.
Both of them traveled later to the residential area of the fortress, seeking reconciliation. As they saw each other in the hallway, a catastrophic cave in smashed through the ceiling, sending a chunk of rock flying into Dumed. Mortally wounded, his last words to his only child were, "I love you, son."
Vabok is sure of only one thing in his life: He doesn't care about anything anymore.
On the inside, though, he just wants to open up and be loved, whether he knows or accepts it or not.
Yes, I am aware that this is overdoing it. None of the other characters should know this stuff unless my character launches into an explanation (read: comic strip) of his past, which is unlikely to happen under normal conditions.