Welfo was a female hedgehog that worked as a slave at Riftgard. She was one of Triss' co-conspirators, along with Shogg, in the plan to steal Princess Kurda's boat and escape the tyranny of Riftgard. When the plan was discovered by Riftun, the three were thrown into the punishment cage, a metal cage half-submerged in the icy coastal waters. Welfo acted as the very jittery lookout as Shogg and Triss filed through the bars.