Carnival of Liars

The Carnival of Liars is a puzzle that appears in Marvin's part of the game.

Details
Around the carnival are people who make various false claims. All of these claims describe someone who Marvin does not trust. The player must read and document all of these claims, and deduce who is not described by them.

Claims
[Data extracted from Dani Cobalt's playthrough.]
 * Everyone here knows who to trust.
 * People with white hair put me at ease.
 * I find people with brown hair to be the most trustworthy.
 * Anyone with blonde hair is okay in my book!
 * The ones in purple are the only ones you can trust.
 * I'll always trust a person with a mustache.
 * I love primary colors, so anyone who wears those are great in my book!
 * I like the girl with the blue hair. I think she can be trusted.
 * I feel safe around the one wearing green. They're very trustworthy.

Trivia

 * Beau is the solution to this puzzle, as they are the only one with characteristics no one in the carnival states is trustworthy.
 * Not a single claim is to be believed.
 * The line "Everyone here knows who to trust." is the indicative line that everyone in this puzzle is lying.