Name: Margie O’Donnell
Age: 56
Hometown: Colorado Springs, Colo.
Previous Seasons: Seasons 14 & 18
Current occupation: RN and Sr. Clinical Research Associate
Describe what you do: I monitor diabetes clinical research trials – new drug clinical trials.
Biggest mistake you made in your previous season: Season 14 we did really well. We never finished lower than 4th place, but on season 18 we made a lot of mistakes.
Most memorable moment from your first Race: Finishing in 1st place on the 1st leg, and Phil “signed” for Luke, “You are team #1.” So emotional.
Favorite place you visited on your first season: Guilin, China – so beautiful. I would love to go back some day.
Why do you want to run the Race again? I keep asking myself that same question, I am 56 now – just for the adventure and the friendships you form.
How have you changed since the last time you competed? The first two times we were on the Race I was single. I got married in 2011 and I think that I am happier now than ever before.
What are you passionate about? My husband, my grandchildren, my job, my free time and vacations.
People would be surprised to learn: I married a man, at age 54, I have known since I was 6 years old.
Biggest challenge you and your teammate will face on The Race together: Communication is always a challenge in the race. It is almost impossible to communicate when we cannot see each other, so there are situations where we do not communicate very well.
What country and place would you most like to visit and why? We really wanted to visit Ireland; my mother’s family is from there and I have always wanted to go.
What do you hope to accomplish by running The Race (other than winning one million bucks)? Getting to travel with Luke. He was living in Alaska, and then moved to Philadelphia, so I do not get to see him very often.
Any strategic changes you will make heading into this Race: I will try to be more patient, I have to realize that Luke is a grown man.

Name: Luke Adams
Age: 28
Hometown: Philadelphia, Penn.
Previous Seasons: Seasons 14 & 18
Current occupation: Advancement Associate / Motivational Speaker
Describe what you do: I help secure funding for and raise awareness of The Pennsylvania School for the Deaf through communications and marketing, outreach to the community, and coordination of administrative processes for the Advancement office. I deliver speeches about my life as a Deaf person to organizations, educational institutes and fundraising events across the United States.
Biggest mistake you made in your previous season: Not being able to find the last surfboard in the final challenge on our first season, and not being able to find the tea on our second season!!
Most memorable moment from your first Race: Winning the first leg on our first season!
Favorite place you visited on your first season: Switzerland and Thailand were my favorite places to visit on our first season. Australia was my favorite place to visit on our second season.
Why do you want to run the Race again? To win the million bucks! I had a great time seeing the world with my mom. It was such an incredible experience. I am just so happy that I get to do it with my mom for the third time and to be able to say that we are one of three teams who got to run the Amazing Race three times!
How have you changed since the last time you competed? I stopped drinking tea!
What are you passionate about? I am passionate about community involvement, in both the Deaf community and the LGBT community. I believe promoting outreach and raising awareness is vital.
People would be surprised to learn: I lived in Alaska for almost a year. It's one of the best experiences I ever had.
Biggest challenge you and your teammate will face on The Race together: I just hope that we don’t have to do any self-driving - it is pretty tough to communicate with each other when one of us is driving and one of us is sitting in the back. Not easy to communicate with each other!
Pet peeve about your teammate: Nothing really bugs me - my mom’s pretty awesome and easy going.
What country and place would you most like to visit and why? I’d love to visit Ireland to see where my family came from.
What do you hope to accomplish by running The Race (other than winning one million bucks)? Making it farther than we did on our second Race, and enjoying the experience with my mom one more time.
Any strategic changes you will make heading into this Race: No alliances. Run this race on our own.  

Watch their cast video here!