Twinsins Thlee was an alias used by Jagged Fel. The name's phonetic similarity to "Twin Suns Three," Jag's old callsign from the Yuuzhan Vong War, allowed Luke and Mara Skywalker to identify the former Chiss Expansionary Defense Force officer in a comlink communication from Apprentice Seha Dorvald and allow him entrance to the Jedi Temple.