A student at the Pokémon School from Pallet Town in the Kanto region. He has a bright personality and hates to lose. He occasionally goofs around. He is the first champion of the Alola League. His dream is to become a Pokémon Master. He lives at Professor Kukui's house. He uses Firium Z, Grassium Z, Normalium Z, Lycanium Z, and Pikashunium Z. Party Pokémon ・Pikachu Ash's partner. Electric-type. Moves: Thunderbolt, Electroweb, Iron Tail, Quick Attack. ・Rowlet Often falls asleep. Grass/Flying-type. Held Item: Everstone. Moves: Leafage, Seed Bomb, Brave Bird, Feather Dance. ・Torracat Fire-type. Moves: Flame Charge, Fire Blast, Fire Fang, Revenge. ・Lycanroc (Dusk Form) Rock-type. Moves: Stone Edge, Counter, Accelerock, Bite. ・Melmetal Steel-type. Moves: Flash Cannon, Double Iron Bash.

A student at the Pokémon School. He is the second strongest in the class in Pokémon battles and is a skilled trainer who has completed the island challenge. He runs a ranch with his family and is very soft on his younger sister, Mimo. He likely has a sister complex. He gets furious at any disrespectful behavior toward the guardian deities of Alola. He often ends up as a gag character. He uses Firium Z. Party Pokémon ・Turtonator Fire/Dragon-type. Moves: Flamethrower, Dragon Tail, Focus Blast, Shell Smash, Shell Trap. ・Marowak (Alolan Form) Fire/Ghost-type. Moves: Bonemerang, Shadow Bone, Iron Head, Flare Blitz. ・Charizard Fire/Flying-type. Moves: Flamethrower, Fire Punch, Slash, Aerial Ace.

A student at the Pokémon School. He is quite short, only about half Ash's height. He is afraid of the dark. He is a genius who handles everything from programming to engineering. He uses Buginium Z. Party Pokémon ・Togedemaru Electric-type. Moves: Zing Zap, Spiky Shield. ・Vikavolt Electric/Bug-type. Moves: Discharge, String Shot, Signal Beam, Zap Cannon.

A student at the Pokémon School. She is the poster girl for Aina's Kitchen on Melemele Island. While she is an excellent cook, she sometimes does strange things like adding Pikachu's Thunderbolt as a secret ingredient. She uses Grassium Z. Party Pokémon ・Tsareena Grass-type. Moves: Trop Kick, Magical Leaf, Double Slap, Stomp.

A student at the Pokémon School. The daughter of a fisherman and the eldest of three sisters. She has excellent athletic reflexes. She is playful and sharp-tongued, frequently telling tall tales (e.g., claiming she caught a Kyogre). While usually calm, she is scary when angry. She actually wears a school swimsuit under her clothes. She uses Waterium Z and Primarium Z. Party Pokémon ・Primarina Water/Fairy-type. Moves: Sparkling Aria, Aqua Jet, Surf, Icy Wind. ・Eevee (Nickname: Sandy) Normal-type. Moves: Tackle, Double-Edge.

A student at the Pokémon School, native to the Alola region. She possesses extensive knowledge about Pokémon and loves them, though she was previously unable to touch them. She lives in a large mansion with a butler named Hobbes. She refers to herself as "watakushi" and speaks primarily in polite language. She is the daughter of Lusamine, the president of the Aether Foundation, and has an older brother named Gladion. She uses Icium Z. Party Pokémon ・Vulpix (Alolan Form) Ice-type. Moves: Powder Snow, Hail, Aurora Veil.

The homeroom teacher for Ash and the others, and a Pokémon Professor. He frequently incorporates move names into his speech. First person: I (masculine). He is married to Professor Burnet. Party Pokémon ・Incineroar Fire/Dark-type. Moves: Darkest Lariat, Blast Burn, Bulk Up, Throat Chop. ・Braviary Normal/Flying-type. Moves: Brave Bird, Superpower, Steel Wing, Sky Drop, Rock Slide.

Professor Kukui's wife and a researcher for the Aether Foundation. She frequently conducts research on Pokémon. She is a great cook and is always in charge of the meals. Her partner is Munchlax.

From left to right: Lusamine Wicke Faba

The leader of Team Skull. He seems to hold a grudge against Professor Kukui. His partner is Golisopod.