Aitu Four
Aitu Four is the fan name for a 4-castaway voting bloc on Survivor 13 (Cook Islands), recorded as forming on day 7. Yul Kwon is credited with starting it. It held together long enough to make Yul Kwon the winner.
Survivor does not name alliances on screen, so this name and this roster are a fan convention rather than an official record. Placements and days below are from our own season data.
Members
| Castaway | Role | In the alliance | Finish |
|---|---|---|---|
 Yul Kwon Winner | Founder | Days 7 to 39 | |
 Oscar Lusth | Loyal to the end | Days 20 to 39 | |
 Rebekah Lee | Loyal to the end | Days 7 to 39 | |
 Sundra Oakley | Left the group | Days 20 to 38 | Lost fire challenge |
Roles come from the fan record: a founder started the group, a member who stayed loyal voted with it to the end, one who left the group drifted out of it, and one who turned on it broke ranks before the game was over.
Worked with the group
Recorded as allied with Aitu Four at times without being counted as members.
Played against it
Rival alliance on the other side of the vote.
Castaways named individually as working against it.
Read more about Survivor 13: Cook Islands, browse every named Survivor alliance, or see the tribe rosters behind them.
Birthplace, pre-game profile and alliance facts adapted from Survivor Fandom and Wikipedia, retrieved 2026-07-21. Licensed CC BY-SA. Alliance names and rosters are fan-curated and are not an official record.