Her health improved tremendously and, not only did she participate in four events at the London Paralympic Games, but she also took home one Gold and three Silver medals while also setting a world record in in the 100-meter free.

Now Victoria is taking on yet another challenge in the ballroom with partner Valentin Chmerkovskiy.

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Now Barbara is swimming into uncharted waters with partner Keo to add the coveted Mirrorball trophy to her collection of successes.

SEE BARBARA CORCORAN'S EXTENDED BIO ON HER CAST PAGE.

Terrell is also a respected and best-selling author, penning a children's book, .

Now Terrell is tackling a brand new challenge with partner Cheryl Burke. VANESSA LACHEY (pro partner Maksim Chmerkovskiy) - As the winner of the 1998 VICTORIA ARLEN (pro partner Valentin Chmerkovskiy) - At the age of 11, lifelong swimmer Victoria Arlen fell ill with a rare viral disease that left her without use of her legs for nearly 10 years.

SEE LINDSEY STIRLING'S EXTENDED BIO ON HER CAST PAGE.

NICK LACHEY (pro partner Peta Murgatroyd) – Nick Lachey, a multi-platinum recording artist, television personality and businessman, first rose to stardom as the front-man of the popular band 98 Degrees, selling over 10 million albums worldwide and charting several top-40 hits.

SEE DEREK FISHER'S EXTENDED BIO ON HIS CAST PAGE and CLICK HERE TO MEET DEREK FISHER IN THIS NEW VIDEO!

DREW SCOTT (pro partner Emma Slater) - Drew Scott and his twin brother, Jonathan, host multiple top-rated HGTV series, including the Emmy-nominated .

Their shows are watched by millions of fans in over 150 countries.

Now he hope to make the Mirrorball trophy his next piece of property with partner Emma Slater. and CLICK HERE TO MEET DREW SCOTT IN THIS NEW VIDEO!

Ryan was so lovely - we just clicked immediately." "We would always look for each other at rehearsals," Ryan adds.