A passionate trainer who never knows how to give up. He considers Pokémon family rather than just friends and stays with them until the end no matter what difficulties arise. A skilled trainer who became the first Alola Champion through creative battles and strong mental fortitude. Pokémon Pikachu (Electric): Ash's eternal partner. Deeply loyal and bravely faces any opponent. Rowlet (Grass/Flying): Laid-back and sleeps a lot, but has excellent focus in crucial moments. Incineroar (Fire/Dark): Initially very wary, but grew into a powerful ace after learning to trust Ash. Rockruff → Lycanroc (Dusk Form) (Rock): Active and competitive, showing the best chemistry with Ash. Poipole → Naganadel (Poison → Poison/Dragon): Mischievous but loves Ash dearly; evolved after returning to Ultra Space. Meltan → Melmetal (Steel): Possesses a curious and pure personality; evolved during the Alola League finals.

Usually quiet and calm, but more serious than anyone in battle. She loves Water-type Pokémon and possesses excellent fishing and swimming skills. Pokémon Primarina (Water/Fairy): Her representative partner who grew alongside her. Uses beautiful songs and powerful water techniques. Eevee (Normal): Bright, curious, and runs around actively. Lana gave it the nickname Sandy.

A passionate and responsible trainer. He treasures his family and Pokémon, and handles Fire-type Pokémon better than anyone else. Pokémon Turtonator (Fire/Dragon): Kiawe's main Pokémon with tough endurance and powerful firepower. Marowak (Alolan Form) (Fire/Ghost): A calm and reliable partner whose specialty is attacking with a fire bone. Charizard (Fire/Flying): A Ride Pokémon that Kiawe travels on, playing a major role in both transportation and battle.

An aspiring chef with a bright and positive personality. She helps out at Aina's Kitchen, run by her family, and researches Pokémon cuisine. She shares a deep bond with Grass-type Pokémon. Pokémon Tsareena (Grass): Cute and kind, but grows into a tough and reliable partner as she evolves. Shaymin (Grass): A Mythical Pokémon she looked after for a while, creating special memories with Mallow.

Character Kind and considerate, she was initially afraid of touching Pokémon. She grows strong by overcoming her fears through her journey. She calls Gladion her older brother. Gladion and Family Pokémon Vulpix (Alolan Form) (Ice): A partner Lillie raised dearly from an egg. Very affectionate and follows Lillie well.

A calm and smart inventor. He likes Electric-type Pokémon and helps his friends through machines and inventions. He possesses great analytical skills and conducts calm battles. Pokémon Togedemaru (Electric/Steel): Sophocles' first partner. Affectionate and prone to jealousy, but follows Sophocles more than anyone. Vikavolt (Bug/Electric): Has a laid-back personality, but uses fast and powerful electric techniques after evolution.

The Pokémon Professor of the Alola region and the principal of the Pokémon School. Usually kind and cheerful, he is a skilled trainer who is active as the masked Royal Mask in battles. He is also the person who founded the Alola Pokémon League. Pokémon Braviary (Normal/Flying): A brave bird of prey that rules the sky. Venusaur (Grass/Poison): A dependable Pokémon that fights with powerful flowers and vines. Empoleon (Water/Steel): An emperor Pokémon with the dignity of a cold-headed commander. Lucario (Fighting/Steel): A warrior Pokémon that fights agilely while reading auras. Incineroar (Fire/Dark): An ace Pokémon with overwhelming power and fighting spirit.

A living Pokémon Pokedex traveling with Ash. It can talk and think, taking on the role of analyzing and recording Pokémon information. Curious and talkative, it makes the journey more enjoyable. It adds "-zzt!" to the end of every sentence.

A professor specializing in Ultra Wormholes and dimensional research, and Professor Kukui's wife. With a calm and kind personality, she cares for Ash and his friends like her own children. Pokémon Munchlax (Normal): Laid-back and greedy for food, but a dependable partner Pokémon that follows Professor Burnet very well.

Gladion: Usually a man of few words who appears cold, but treasures his family more than anyone. Shows strong competitive spirit and excellent skills in battle. Lillie's older brother. Pokémon Silvally (Normal): Gladion's representative partner. Changes into various types and overwhelms opponents with powerful strength. Umbreon (Dark): A Pokémon with high defense and agility. Engages in strategic battles with excellent chemistry with Gladion. Lycanroc (Midnight Form) (Rock): Possesses strong attack power and wild nature. Pushes opponents with fast and powerful techniques.