Mark and Bill
These comic book aficionados are determined to be the most strategic team ever to compete in the Race. Mark and Bill, friends for over 23 years, first met at a science fiction club and have been bonding over their love for comics and games ever since. Mark says that he "wears geek like a badge of honor."

Mark describes himself as outgoing, funny and smart. He is willing to go anywhere and isn't afraid of adventure. His last vacation was to Vanuatu in the South Pacific where he climbed a volcano.

Bill is the opposite of Mark -- he describes himself as cautious, easygoing, goofy, yet competitive. When asked how the Race could change their friendship, Bill says that the Race might present them with some bad situations, but in the end, they'll finish with a deeper respect for one another.

These masterminds are ready to see what they are made of and are convinced that they can be one step ahead of the competition if they play their cards right.

Terence and Sarah
Terence and Sarah have been dating for almost a year, but they couldn't be more different.

Sarah has an MBA from Wharton and is often the only woman in meetings during her long days working on Wall Street, while Terence sells real estate to pay the bills and satisfies his true passion by coaching runners.

Sarah claims that the biggest difference between the two is that she is lower maintenance and Terence is more emotional. However, she believes they share a competitive spirit and they're smart, energetic, adventurous as well as fearless.

Terence describes himself as witty, sensitive and driven. One of his proudest accomplishments is finishing the last two New York City Marathons in under three hours.

This Team is determined to prove to themselves whether they belong together while on the Race. They hope that being well-traveled, physically fit, and highly competitive will help them win the $1 million. They think their biggest weakness could be the tendency to become too intense, fighting amongst themselves, or their dietary restrictions. Regardless of whether they win or not, this adventure will definitely be a journey that could make or break them.

Andrew and Dan
Life couldn't be any better for these fraternity brothers. Andrew and Dan met while attending Arizona State University and the last four years have been filled with good times. Some of the Teams refer to Andrew and Dan as "Team Superbad."

Now they are ready for a life-altering experience. Andrew, a senior, is studying urban planning. He is hoping to make the most of their last year in college before they part ways. His laid-back appearance can be deceiving so count on him to be assertive, hands-on, and ready to take on anything that comes his way.

Dan graduated last December with a degree in Tourism Management. He enjoys bar hopping, sports and all things funny. Dan also loves to travel and hopes to use his extensive global travel knowledge and expertise to get a leg up on the competition.

These two say they can talk their way in or out of anything by cracking jokes and keeping the mood light, and they promise to bring more to the Race than any other Team. Look for them to always keep things entertaining in their own special way.

Toni and Dallas
Toni and Dallas have always been there for each other and will let nothing come between them. They are hoping the Race will provide them with some quality family time they've been missing out on since Dallas has been away at college - and maybe even a million dollars.

As a single mother, Toni sacrificed quite a bit to give Dallas a great childhood. Now Dallas is in college and living on his own.

Dallas can be very persuasive and enjoys getting people to do what he wants. His pet peeve about his Teammate is that she tells very long-winded stories. He describes himself as outgoing, persistent and passionate.

Toni considers herself a leader, but knows that she'll need to lean on her son a bit more by relying on Dallas's strengths rather than telling him what to do. Her biggest accomplishment has been raising her son. She currently works for herself as a corporate accounting consultant.

With Dallas's constant flirting and sarcasm and Toni's laughter and personality, they are sure to be one of the most entertaining Teams on the Race.

Kelly and Christy
Kelly and Christy are best friends that will not settle for second best. These two go-getters have been through a lot in the last year and want to prove that they can overcome anything.

Kelly, having been a collegiate dancer, and Christy, a collegiate cheerleader, are physically fit and are up for the challenges the Race will bring. They have supported one another through their own marriages and the dissolution of both, have worked together at the same company, have both remodeled homes and have tackled life together for the last 10 years.

Kelly works as a sales representative for a pharmaceutical company. She describes their team as quick, resourceful and resilient. She admits that she has a tendency to become impatient, and that Christy can be temperamental, but realizes they will need to focus on controlling these traits if they are going to be successful on the road.

Christy, a business development representative for a title insurance company, is determined to be the first Amazing Race all-female team to take the $1 million prize. She believes she and Kelly can accomplish anything they set their minds to. Christy also believes that their sweet, Texas charm will prove to be a very resourceful asset throughout the Race. Christy describes their team as magnetic, energetic and kind-hearted.

Neither has traveled extensively outside of the U.S., but both are eager to change that. This team's drive, experience and competitiveness may provide them with the opportunity to see all the world has to offer.

Anthony and Stephanie
This competitive couple is hoping to be engaged by the end of the Race. Back together again after a year-long break-up, Anthony says he will propose to Stephanie if they make it through the Race.

Even though they've overcome many of their differences, their constant bickering would suggest otherwise.

Anthony, a mortgage broker, describes himself as adventurous and entertaining. He enjoys talking sports, hunting and poker. When asked what country he'd most like to visit - Anthony said Italy because he's 100 percent Italian and has yet to visit.

Stephanie is a financial saleswoman. She loves meeting new people and learning different cultures. She describes herself as outgoing, funny and athletic, and loves competition.

Both of them are eager to Race around the world and put their relationship to the test and ultimately prove to everyone - including themselves - that they do belong together.