• CBS "Meet Jay" pre-game video
• Full CBS "Meet the Cast" video
• Jamarcus Gaston for "Cool Jobs" interviews Jay about the exciting world of being a male model, working out, and such. On YouTube. (Apparently this job did not turn out to be cool enough to satisfy Jay.)

• Official CBS Survivor: One World bio page
• Jay Byars on Google image search (highly unlikely to be SFW).
• Jay Byars on twitter, facebook

Collection of images from the preview and other circa-Ep1 One World footage:

Vidcap gallery: Click on thumbnails to expand; use arrow keys to navigate between enlarged pics.

From MSN.com's pre-game interview with Jeff Probst:

"Jay says: Everybody wants to walk away with a million bucks, but that can be taken away from you in an instant. They [Survivor casting] saw an adrenaline junkie. They saw someone that's going to come out here and give it their all.

Jeff says: He's going to prove to himself that he's enough of a workforce around camp. I don't think that many people would expect that, looking at him because he kind of plays that Southern good old boy. I think he knows exactly what time it is."

From his official CBS bio page:

"Personal Claim to Fame: Being a part of four different mission trips to four different countries.
Inspiration in Life: Bear Grylls – that guy is crazy! And, I just found out he is a Christian. I love his "I can go anywhere and do anything mentality."
Hobbies: Working out, indoor rock climbing and motocross.
Pet Peeves: Smacking gum, bad breath and clingy texters.
3 Words to Describe You: Active, daring and charming.
Survivor Contestant You Are Most Like: Colby or Rupert. They tried to play the game fair and honest, but they didn't have the physical ability to perform. I would choose their game play and my physicality.
Reason for Being on Survivor: To experience life in an exciting and challenging way. I want to discover who I am and see if I can really outsmart everyone.
Why You Think You'll "Survive" Survivor: I have heart. Plus, I'm very level headed. I'm going to be calm and consistent when people are breaking down.
Why You Think You Will Be the Sole Survivor: I know that I have the will and the skill to make it to the end. I have overcome a lot in life, and who you are is how you play. I'm a winner."

Summary of evidence for Jay Byars being on Survivor: One World.

- castaway208 (10/13/11) started the ball rolling with a substitution clue of Jay's name. This was quickly solved by North09 (10/13/11): Model named Jay Byars?

- Jay apparently works as a personal trainer at a boot camp in Greenville, SC, since they posted on their facebook (11/14/11): "Attention girls ages 14-20: I have a BIG announcement about our new year 'Prom Boot Camp'. Meet your new celebrity boot camp trainer and my dear friend, Jay Byars!" (The announcement originally mentioned Survivor, but has since been edited as above, to be more vague.)

Who is Jay Byars?

From the "Cool Jobs"/modeling interview linked above:

- He's described as "23-year-old Jay Byars" (as of May 10, 2010), and had been modeling for about six months at that time.

- He was at the time a Limestone College (Gaffney, SC) student.
- He "just had a top-secret casting call with a big client" (in May, 2010, circa S21/22 finals?)

From his facebook photos, it appears he went on a mission trip to Brazil in 2007, and participates in MMA (sweaty, steroid-soaked dudes hugging each other, mostly).