Before making his live-action debut in The Mandalorian and Grogu, we first met villain Embo in The Clone Wars series. However, Lucasfilm boss Dave Filoni says the bounty hunter was actually supposed to appear way earlier, in George Lucas' scrapped series Star Wars: Underworld.
"While we were writing and creating The Clone Wars, George was also developing a live-action series called Star Wars: Underworld," said Filoni to StarWars.com. "He had a lot of visual development done where he was exploring new designs for ships, planets, droids, and aliens. When we would meet to discuss upcoming Clone Wars [episodes], George would use some of that visual inspiration for our stories."