Isaaru is a non-playable character from Final Fantasy X and Final Fantasy X-2, voiced in both games by Quinton Flynn. He is a kind hearted and eager Summoner in the land of Spira, who travels to the Temples of Yevon in search of more powerful Aeons with the hopes of finally defeating Sin.
When the player first meets Isaaru, he thinks well of the party, and admits to admiring Yuna's father, High Summoner Braska, in his younger years. His two brothers, Maroda and Pacce, travel with him as his Guardians. Isaaru was captured by the Al Bhed and kept in the Summoners Sanctum in the doomed Al Bhed Home. He and Dona abet the parties flight during the attack by the Guado. He then rode the airship to the Calm Lands before returning to Bevelle. Isaaru believes whole-heartedly in Yevon and this misplaced trust leads him to battle Yuna after she is convicted of treason. Though he is defeated, his life is spared by Yuna.
Two years following the Eternal Calm, the now retired Summoner takes a job working with Cid leading tours through Zanarkand and providing a thrilling spook to those who enter by leading them on a "mysterious" quest. Yuna and the Gullwings run across him and best him at his game. When they confront him about Zanarkand becoming a tourist attraction, he admits would like to help the world more, but without Aeons, is unsure of how to find his place in the world. He also seems to be having a rift with his brother Maroda who has joined the Youth League. His younger brother Pacce becomes a treasure hunter with a group of friends of his own, and the trio is split.
Depending on the conversations the Gullwings have with Isaaru in Final Fantasy X-2, he may return to Bevelle late in the game and help lead them into a new era.
|Tidus - Auron - Rikku - Wakka - Lulu - Yuna - Kimahri|
|Temporary playable characters|
|Jyscal Guado - Kelk Ronso - Wen Kinoc - Yo Mika|
|Chappu - Clasko - Elma - Gatta - Lucil - Luzzu - Lord Mi'ihen|
|Belgemine - Braska - Dona - Gandof - Isaaru - Ohalland - Yocun - Yunalesca - Zuke|
|Barthello - Biran Ronso - Borra - Brother - Calli - Cid - Ginnem - Jecht - Maechen - Maroda - O'aka XXIII - Omega - Pacce - Rin - Shelinda - Tidus' Mother - Tromell - Wantz - Yenke Ronso - Yu Yevon - Zaon|
|Baaj Temple - Besaid Island - Kilika Island - Luca - Mi'ihen Highroad - Mushroom Rock Road - Djose - Moonflow - Guadosalam - Farplane - Thunder Plains - Macalania - Bikanel Island - Bevelle - Calm Lands - Monster Arena - Cavern of the Stolen Fayth - Remiem Temple - Mount Gagazet - Zanarkand - Zanarkand Dome - Omega Ruins|
|Al Bhed - Guado - Hypello - Ronso|
|Aeon - Blitzball - Butterfly Hunt - Calm - Celestial Weapon - Chamber of the Fayth - Chocobo Knights - Cloister of Trials - Eternal Calm - Fahrenheit - Fayth - Fiend - Final Aeon - Guardian - High Summoner - Hover - Jecht Shot - Machina - Maester - Overdrive - Overdrive Mode - Overkill - Pilgrimage - Pyrefly - Rin's Travel Agency - S.S. Liki - S.S. Winno - Sending - Shoopuf - Sin - Sphere - Sphere Grid - Summoner - Unsent - Warrior Monks - Yevon|
|Original Soundtrack - Promo CD - Suteki da ne - Vocal Collection - Feel/Go Dream: Yuna & Tidus - Piano Collections - Official Soundtrack
|Abilities - Armor - Auto Abilities - Black Magic - Characters - Chronology - Enemies - Enemy Abilities - Items - Locations - Ronso Rage - Translations - Walkthrough - Wallpapers - Weapons - White Magic|
|Yuna - Rikku - Paine|
|Brother - Buddy - Shinra - Barkeep - Biggs and Wedge|
|Auron - Ayde - Baralai - Barthello - Beclem - Benzo - Borra - Calli - Cid - Clasko - Dona - Elma - Garik Ronso - Gippal - Jecht - Kimahri Ronso - LeBlanc - Lenne - Lian - Logos - Lucil - Lulu - Maechen - Marnela - Maroda - Nhadala - Nooj - O'aka XXIII - Ormi - Pacce - Prophet - Rin - Seymour Guado - Shelinda - Shuyin - Tidus - Tobli - Trema - Tromell - Vidina - Wakka - Wantz - Wen Kinoc|
|Besaid - Bevelle - Bikanel - Calm Lands - Cave Ruins - Cavern of the Stolen Fayth - Chocobo Ranch - Coliseum - Den of Woe - Djose - Farplane - Fiend Colony - Guadosalam - Kilika - Luca - Macalania - Mi'ihen Highroad - Mushroom Rock Road - Ruin Depths - Thunder Plains - Via Infinito - Yadonoki Tower - Zanarkand|
|Creatures and Races|
|Al Bhed - Guado - Human - Hypello - Ronso - Cactuar|
|Aeon - Blitzball - Blitzball Tournament - Blue Bullet - Calm - Celsius - Chamber of the Fayth - Chocobo - CommSphere - Creature Create System - Crimson Squad - Dressphere - Episode Complete - Episode Concluded - Eternal Calm - Fayth - Fiend - Game Over - Garment Grid - Gil - Gullwings - Gunner's Gauntlet - High Summoner - Hotspot - Hover - Kinderguardians - LeBlanc Syndicate - Machina - Machine Faction - Maester - Missions - Movie Sphere - New Yevon - Oversoul - Piano - Public Relations - Pyrefly - Rin's Travel Agency - Save Sphere - Shoopuf - Shop - Sphere - Sphere Break - Sphere Break Tournament - Sphere Hunters - The End - Tiny Bee - Unsent - Vegnagun - World Map - Youth League - Zanarkand Abes|
|Original Soundtrack - Eternity ~Memory of Lightwaves~ - Real Emotion/1000 Words - Vocal Collection - Yuna - Vocal Collection - Rikku - Vocal Collection - Paine - International Last Mission Original Soundtrack - Piano Collection
|Accessories - Blue Bullet - Chronology - Dresspheres - Enemies - Enemy Abilities - Items - Merchandise - Spells - Walkthroughs - Wallpapers|