Click to reveal the spoiler:
- Hoid appears in every Cosmere book, mostly in minor roles. He is functionally immortal, thousands of years old, able to hop between planets via magic, and is collecting magical abilities from each planet. His motives are unknown but he appears to be working for the overall good of the universe.
- The Sorceress is from Sel of the Elantris series. Hoid made a bet with the Sorceress that if he could enter her tower after being cursed, she would grant him the ability to do magic from her world.