Ash Ketchum (Satoshi in Japan) is the main protagonist of the Pokémon anime. His last name is a pun on the franchise's famous slogan "Gotta catch 'em all!" He also appears in several manga adaptations, though the anime is his most prominent incarnation. The character draws inspiration from Red, the player character from Pokémon Red and Blue, as well as from creator Satoshi Tajiri's own childhood.
Age and Timeline
Ash starts the series at 10 years old, though the show operates on a floating timeline where characters don't noticeably age. This became apparent when the official Japanese Pokémon website stated he was the same age as May (who was 10 at the time), despite the in-universe years that had passed. A short film even confirmed he'd met Pikachu around age 11, but the inconsistency was never resolved.
Personality and Growth
Ash is earnest and determined, with genuine care for his Pokémon. He's also competitive to a fault—confident bordering on arrogant, stubborn, and reckless enough to get himself into serious danger. During battles, though, he's sharp and tactical, reading matchups and terrain to his advantage more often than not. His training philosophy has evolved too: early on he was obsessed with catching more Pokémon than childhood rival Gary Oak, but he eventually shifted focus to developing each Pokémon's individual strengths. He's particularly known for winning battles where type disadvantage should work against him.
Rivals
Beyond Gary, Ash has faced off against plenty of trainers. Richie in the Indigo League, Casey (an over-the-top Electabuzz fan), and later Harrison, Jackson, Morrison, and Tyson stand out—Tyson actually went on to win the Hoenn League. Paul, introduced in Diamond & Pearl, became his most serious rival, defined by arrogance and a sharp contrast to Ash's scrappy underdog style.
Team Rocket
Ash's most persistent problem is Team Rocket. Since the second episode, the bumbling trio of Jessie, James, and their talking Meowth have made it their mission to steal Pikachu, with zero success. They're more comedy relief than real threat, though they've occasionally teamed up with Ash when circumstances demanded it.
Family
His mother is Delia Ketchum (Hanako), a caring but sometimes oblivious woman. Early episodes run a gag where she's on Ash about changing his boxer shorts daily. His father remains a mystery. His mother once mentioned that Ash made the journey from Pallet Town to Viridian City in a day, while it took his father four days, but that's the only real reference to him in the show. There's speculation from the Pokémon Live! stage play that Delia may have dated Team Rocket leader Giovanni in her youth, but nothing in the anime confirms this.
Random Trivia
In one episode, "Showdown at Dark City," Ash briefly goes undercover as "Tom Ato" (a tomato pun) after spotting ketchup Pikachu was eating. He needed a fake identity to avoid dragging his real name into a turf war between rival gyms.
Content compiled by AnimeList.moe from publicly available sources.