Question: What English Professional ballroom dancer is a judge on Dancing with the Stars?

Context paragraphs:
Dancing with the Stars (U.S. season 18): Season eighteen of "Dancing with the Stars" premiered on March 17, 2014.  Len Goodman, Carrie Ann Inaba and Bruno Tonioli returned as judges; Tom Bergeron returned as host while Erin Andrews replaced Brooke Burke-Charvet as co-host.  Bandleader Ray Chew replaced the Harold Wheeler orchestra and singers.  In addition, the skybox made a return to the show and the judges table returned to the left side of the ballroom.

Jonathan Wilkins: Jonathan Wilkins is an English ballroom dancer and dance teacher, born in London.  He holds many titles in Professional Ballroom Dancing including being 10 times Professional Ballroom Champion, 1997 - 2007 ( in a partnership with Katusha Demidova which lasted eleven years, and brought considerable success).  In 2004 they won the World Classic Showdance Championship, which is one of the subsidiary World Dance Council Dance Sport events.  Their final result was to win the WDC Open Professional Ballroom title at the USA Open in Orlando, Florida 2007.

Kym Herjavec: Kym Herjavec (née Johnson; born 4 August 1976) is an Australian professional ballroom dancer and television performer who appeared in the first three seasons of the Australian version of "Dancing with the Stars" as a professional dancer, before moving to the U.S. version of the franchise from 2006 to 2015.  Johnson returned as a professional to the U.S. series in 2017 for its 24th season.  She has since served as a judge on the Australian version of the show since 2013.

Len Goodman: Leonard Gordon Goodman (born 25 April 1944) is an English professional ballroom dancer, dance judge, and coach.

Oleksii Zhylenko: Oleksii Zhylenko(Ukrainian: Олексій Жиленко), was born in Kyiv, Ukraine.  He is a professional Ballroom and Latin coach, World class adjudicator, professional ballroom dancer, "DanceSport" competitor and choreographer.

Warren Bullock: Warren Bullock is a professional ballroom dancer and dance teacher.  He owns a dance teaching business with a chain of 14 'studios', and also teaches on cruises.  He has won a number of awards as a dance teacher and coach and together with his wife Jane, pioneered the teaching of Ballroom and Latin American dancing in schools starting at Glebefields School in Tipton and King Edwards School for girls in Edgebaston before speaking and promoting this concept at the BDF conference in 1997 which resulted in dance becoming part of the national curriculum in some counties.  He was the main character in 8 one hour programmes of Baby Ballroom on channel 5Star - a reality documentary made by Firecracker Films based on Bullock, his family and Zig Zag Dance Factory <ref>http://www.channel5.com/show/baby-ballroom/ <ref>http://www.firecrackerfilms.com/broadcast/baby-ballroom/

Anna Demidova (dancer): Anna Demidova (Russian: Анна Демидова ) (born April 23, 1988) is a Russian-American professional ballroom dancer, actress and model.  She is the winner of the professional dancer competition of "Dancing with the Stars", Season 8, which guaranteed her a spot as a professional dancer in Season 9 and has been featured in many popular magazines worldwide.  Anna is the sister of World Ballroom Dance Champion Katusha Demidova.

Tony Dovolani: Driton "Tony" Dovolani (born July 17, 1973) is an Albanian-American professional ballroom dancer, instructor and judge.  He is known for his involvement in the American version of "Dancing with the Stars" on ABC.  Dovolani also portrayed a Latin bad boy in the hit film "Shall We Dance? " and spent time coaching actress Jennifer Lopez.

Nick Kosovich: Nick Kosovich is a professional ballroom dancer specializing in American Smooth and International Ten Dance.  Kosovich resides in Los Angeles.  He is currently appearing in the "Second Dance World Championship" (Dance for a Dream)in Mexico City for the "Televisa" Company.  He is the representing Judge for team USA.  He retired from competition dancing in 2005, however he has achieved many awards in his career.  An internationally respected figure in the Ballroom world, Kosovich competed for 36 years.  He competed in seven Professional World Championship events, won the United States American Smooth Championships and finished second in the 2004/5 World Classic Showdance Championships.

David Weise: David Weise is a professional ballroom dancer.  In 2006, he placed second in the World Championship Smooth Division with Valentina Kostenko.  Weise's dancing film credits include featured dancer roles in "Dance with Me" and "Rent".  He has also coached dancing and performance for the United States Olympic Rhythmic Gymnastics Team as well as "Dancing with the Stars" competitors.  Weise teaches method acting and performs on stage at Shelton Studios in San Francisco, California.  He is the lead singer and songwriter for the band Slippery People.

Supporting paragraphs: Dancing with the Stars (U.S. season 18) Len Goodman
Answer: Leonard Gordon Goodman