Tion Medon is an NPC, an alien from the planet Utapau.
Revelation of the Sith Edit
Obi-Wan arrived at Utapau and flew down there in a personal shuttle. He was greeted by Tion Medon, who privately told him that the Trade Federation was already there on Utapau, besieging the planet, but that Medon and his people were determined to fight them off by themselves and didn't want any help from outsiders. Medon suggested that Obi-Wan had other more important things to attend to in the Galaxy, and left.