"Uncle" Galath is a close friend to Magnus and Etta, and Godfather to Saga. Aside from this, very little is known about him. He is referred to in dialogue, but has never made an appearance during the games.
He is one of the few people able to travel to and from the House of All Worlds. He visits them regularly, often bringing books for Saga to read. After Saga made her first shift from her bedroom as a child, Galath helped Magnus set up wards around the house to ensure this could not happen again.