• CBS "Meet Christina" pre-game video
• Full CBS "Meet the Cast" video
• Christina's Sears online casting call audition video, archived at video-survivor.com (she was "surfgal82").
• Various videos from Christina's YouTube channel

• Official CBS Survivor: One World bio page
• Christina Cha on facebook, twitter, LinkedIn
• Christina's personal website, Christina-Cha.com
• Christina's tumblr, ChaChaLosAngeles
• Christina's profile on BecomeAHost.com

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:

"Christina says: America needs a sassy, silly, sexy Asian girl because everyone is too serious. I'll make a joke out of everything so they'll need someone that's a comedic relief. I'm very straightforward. I don't want to intentionally hurt anyone.

Jeff says: Christina's not going to be intimidated by the men or the women. If she gets in with the right group of women, they could form an alliance that would be pretty tough. If she ends up on the outside of any women, she's going to be in trouble."

From her CBS bio page:

"Personal Claim to Fame: Senior year of college when I was president, my class won 5th place amongst several universities for the Honda Fit Advertisement Campaign.
Inspiration in Life: Mohandas Karamchand Gandhi with his inspiration of enrollment and empowerment in transforming people in non-violence movement and Winston Churchill. I know they contradict. However, he is one of the most sophisticated and insightful politicians who will go down in history as one of the world's most admired leaders.
...

3 Words to Describe You: Fearless, unstoppable and empowering.
Survivor Contestant You Are Most Like: Kristina on Redemption Island because she likes to take the lead and stands up for herself. I'm the same way. My sense of humor, though, is very sarcastic and dry like Francesca Hogi.
Reason for Being on Survivor: I want to play the game because I know I can do it and it looks like so much fun! I also hope this show will bring my family closer together.
Why You Think You'll "Survive" Survivor: I'm very great at delegating, instructing, leading, organizing and problem solving. I can build a fire, fish, spear fish (sort of) and build shelter.
Why You Think You Will Be the Sole Survivor: Survivor needs a funny, goofy and cute Asian girl! It's time to represent."

Summary of evidence for Christina Cha being on Survivor: One World.

- Following castaway208's revelation that Troy Robertson was on, some poster named truedorktimes (10/8/11) noted that Troy's online friends included Christina Cha, who didn't fit the bulk of Troy's entourage. Fairly soon thereafter, 7o62x39 (10/8/11) pointed out that Christina was a Sears applicant (one he'd previously suggested SEG should pick). Later, castaway208 (10/8/11) confirmed: Yes, Christina Cha is on S24.

Who is Christina Cha?

From her BecomeAHost.com bio (we expect her Survivor one will be quite similar): "Christina Cha is 2nd generation Korean-American, born and raised in Los Angeles, California. She is a writer, TV personality, and a consultant.... In 2006, Christina received her Bachelor's in Arts in Communication with emphasis in Advertisement and a minor in Journalism from California State University of Fullerton. Currently, Christina works full time as a consultant for both individuals and business in multi-media. She is also an associate editor for several online publications focused on topics such as travel, food, fashion, health and beauty. Christina enjoys an active lifestyle practicing yoga, running, rock climbing, cooking, discovering hidden new jewels in the cities, art, music, and traveling around the world."