Ogg has always been a peaceful troll. He is generally quiet, prone to introspection. He never pillaged more villages than was strictly necessary. He also never really held too much animosity for the tiny human farmers and villagers who would come after him with torches and pitchforks. After all it is just their nature to fear someone like himself. So Ogg spent his days in meditation when he could and avoiding troublesome villagers and the heroes they would dispatch to slay him.

That is how he ended up in this prison. Yet another in a long string of misunderstandings. Needless to say, he is thrown in prison with the worst elements of society. He tried to create an inmate outreach without much success. So he spent his days living in the ruins of the library, reading, meditating and fighting off bands of roving cannibals.

Ogg welcomed the chance to join the Blood Bowl team. Athletic competition is healthy and good for the soul. A gentlemanly pursuit that will offer a possible chance for a parole. (Clearly Ogg has never watched Blood Bowl)

Some people accuse Ogg of being really stupid. He is just focused on other things. Meditation, pondering philosophy, etc. He also dislikes the violence. Occasionally, during a game he "zones out" takes a mental breather as a way to cope with the horrific violence he sees on a daily basis.