Buster was a Deltan, and the son of Archimedes.
A proven warrior with the skill of his father, especially in the making and use of bows and arrows, Buster would help Archimedes and Bob teach residents of the village of Cairleon how to better make spears and other flint tools. He eventually takes down Fred when Archimedes is kidnapped.
He is a close friend of Bob's android, Robert, in their home village of Camelot. Before Bob leaves the system, Buster discovers Robert's true identity as The Bawbe.