Gideon is the builder of the Cnidaria, he is an elderly Gnome typically seen wearing a oily leather apron. He is mostly bald with a few wisps of black hair on the top of his head, but more than makes that up for the lack of hair on the top of his head with huge bushy eyebrows, and even some hair growing out of his large ears. He has shining blue eyes, and is often seen with pair of clockwork goggles around his neck. He has various tools and spools of wire are in the pockets of his leather apron.
Gideon’s son, and assistant shipbuilder is Ralph.