Estelle Starway is a former Kalos Queen and professional Pokémon Performer, and the twin sister of former Top Coordinator-turned professional Pokémon Coordinator Stella Starway. She is now a guest judge for the Rookie Class Pokémon Showcases and one of the five judges for the Pokémon Grand Pokémon Showcase.
| Xatu is Estelle's only known Pokémon. Xatu helps is always present with Estelle when she is judging Pokémon Showcases.
Known of Xatu's moves are known.