Cast of Dancing with the Stars a to z

Astronaut Buzz Aldrin was one of the first people to walk on the moon. He and flight commander Neil Armstrong made the Apollo 11 moonwalk in 1969.

American athlete Laila Ali, daughter of legendary boxer Muhammad Ali, has established her own reputation as a boxing champion and television personality.

Emmy Award-winning actress Kirstie Alley played Rebecca Howe on the TV series Cheers and has struggled with weight problems in the public eye. She's also competed on the dance-competition show Dancing with the Stars.

Pamela Anderson first gained fame in the pages of Playboy and rose to international fame with her role on Baywatch. She garnered more fame in 2010, when she competed on Dancing with the Stars.

David Arquette is an actor known for paying quirky roles primarily in films, from Scream to Eight-Legged Freaks to Never Been Kissed.

Singer and actor James Lance Bass came to fame as a member of the boy band 'N Sync.

Michael Bolton is a singer-songwriter known for his soft-rock ballads in the adult contemporary genre.

Chaz Bono is an Emmy-nominated media figure who, born the daughter of performers Sonny and Cher, has undergone gender reassignment

R&B singer Brandy rose to fame as a 15-year-old with her No. 1 hit, "I Wanna Be Down."

Brooke Burke is an entrepreneur and television celebrity best known as the co-host of ABC's hit show Dancing with the Stars. Burke is also well known as a fitness model.

Tia Carrere is an American actress best known for her role as Cassandra in the film, Wayne's World.

Brazilian racecar driver Helio Castroneves won the Indianapolis 500 three times, and finished first on the television dance competition show Dancing with the Stars.

Margaret Cho is a Korean-American comic best known for her candid comedy, TV roles and advocacy.

Actress and singer Zendaya Coleman first came to fame in 2010 as one of the stars of the television comedy Shake It Up.

Billy Ray Cyrus is a country singer/songwriter who is perhaps now more famous for his TV and film roles than for his music.

Tom Delay was Republican majority leader of the U.S. House of Representatives who was convicted of money laundering charges in 2010.

Actor and comedian Andy Dick has appeared in such shows as News Radio, Less Than Perfect and Dancing with the Stars.

Rocco DiSpirito is an American celebrity chef best known for his cooking show The Melting Pot and reality show The Restaurant.

Shannen Doherty is best known for her roles as Heather Duke in the film Heathers and on TV as Brenda in Beverly Hills, 90210 and as Prue in Charmed.

Joey Fatone sang in the hit boy band 'N Sync. He also hosts a cooking show, and has competed on Dancing with the Stars.

Vivica Fox is an African-American film and television actress. She got her start in the soap opera Days of Our Lives and is known for her role in the film Soul Food.

Jennie Garth is an actress notable for her long stint on TV's Beverly Hill 90210 in the 1990s, and her later appearance on Dancing with the Stars.

Leeza Gibbons is an entertainment personality. She's known for hosting the TV shows Entertainment Tonight and Extra, as well as her own radio show, Hollywood Confidential.

Melissa Gilbert came to fame playing Laura Ingalls on the NBC period drama series Little House on the Prairie (1974-82).

Reality television star Kate Gosselin starred on TLC's Jon and Kate Plus 8, and went through a very public divorce as a result of the show's success.

Nancy Grace is the outspoken host of HLN's top-rated show, Nancy Grace.

Singer-songwriter Macy Gray is widely known for her 1999 hit single, "I Try." She is also an actress and philanthropist.

Jennifer Grey is an American actress, best-known for her role as Frances "Baby" Houseman in the 1987 hit film Dirty Dancing.

Dorothy Hamill is a gold medal-winning Olympic figure skater known for her moves on the rink as well as her signature bobbed haircut.

Actor Harry Hamlin starred in the television series L.A. Law as lawyer Michael Kuzak for five seasons and was voted People magazine's Sexiest Man Alive in 1987.

American actress Melissa Joan Hart starred on the television shows Clarissa Explains It All and Sabrina the Teenage Witch, and began performing on the TV series Melissa & Joey in 2010.

David Hasselhoff is a TV actor who hit it big with two wildly successful shows: Knight Rider and Baywatch.

Boxer Evander Holyfield fought in the Olympics and reigned as the world heavyweight champion from 1990 to 1992, and again from 1993 to 1994. In an infamous bout in 1996, Holyfield's ear was bitten by Mike Tyson.

D.L. Hughley is an actor and comedian known for his sitcom, The Hughleys, and his appearance in The Original Kings of Comedy.

Model Kathy Ireland graced the covers of many magazines, including Sports Illustrated, in the 1980s. Today she runs her own successful business Kathy Ireland Worldwide.

Hall of Fame wide receiver Michael Irvin helped lead the Dallas Cowboys to three Super Bowl titles in the early 1990s.

Wynonna Judd is a country music superstar, famous for her solo hits and alongside her mother, Naomi Judd.

Kim Kardashian is a model, actress, entrepreneur, socialite and star of the reality show Keeping Up with the Kardashians.

Singer Gladys Knight has given voice to multiple R&B hits (with and without her Pips), including "Midnight Train to Georgia."

Drew Lachey first made it big as part of the 1990s boy band 98 Degrees. He won the second season of Dancing With the Stars in 2006.

American actress Cloris Leachman has had a long, successful career in television and film, playing a range of dramatic and comedic roles.

Sugar Ray Leonard was a champion Olympic and professional welterweight boxer. He retired from the sport in 1997 and was inducted into the Boxing Hall of Fame.

Mario Lopez is a television host and actor who has appeared chiefly on various television series, such as Saved by the Bell, Extra and America's Best Dance Crew.

Susan Lucci is an American actress, best known for portraying Erica Kane on the daytime drama All My Children.

Former teen heartthrob beloved for his role in The Karate Kid, actor Ralph Macchio has appeared in movies, theater and on television. He is also a producer.      

French-American actor and model, Gilles Marini, finished second place on the eighth season of dance-competition show Dancing with the Stars.

Academy Award winner Marlee Matlin, who pursued a professional acting career despite being legally deaf, is an inspirational role model to many.

Misty May-Treanor is a professional beach volleyball player and three-time Olympic gold medalist. She is the longtime competitive partner of Kerri Walsh-Jennings.

American boxer Floyd Mayweather is one of the best pound-for-pound fighters of his generation. HBO's documentary about him, 24/7, increased his popularity.

Heather Mills is best known as the ex-wife of musician Paul McCartney as well as for her activism and philanthropy.

Kelly Monaco is an actress and model known for her role on General Hospital. Additionally, she was a Playboy "Playmate of the Month" in 1997, and won season 1 of Dancing with the Stars.

Czech tennis star Martina Navratilova was one of the world's top tennis players in the 1970s and '80s.

With a handful of hits to his credit, singer Wayne Newton has spent more than five decades as one of Las Vegas's most popular entertainers.

Apolo Anton Ohno is an Olympic champion speed skater who holds the record for most medals won by a U.S. Winter Olympian.

Fighter Victor Ortiz is an American boxer who won the welterweight title in 2011.

Actress, singer and fashion designer Kelly Osbourne is the daughter of heavy-metal musician Ozzy Osbourne.

Singer, actress, and television personality, Marie Osmond was half of the brother-and-sister duo Donny and Marie, with her brother Donny Osmond.

The daughter of former governor of Alaska and 2008 Republican vice presidential nominee Sarah Palin, Bristol Palin appeared as herself on The Secret Life of the American Teenager in 2010, and has participated on ABC's Dancing with the Stars.

Singer Kellie Pickler appeared on American Idol in 2006 and has since released several hit country albums, including Small Town Girl and 100 Proof.

Paulina Porizkova is a Czechoslovakian model and actress best known for being the first woman from Eastern Europe to grace the cover of Sports Illustrated.

Priscilla Presley is an American businesswoman and actress, best known for marrying Elvis Presley, with whom she had daughter Lisa Marie Presley.

American gymnast Aly Raisman won two gold medals and a bronze at the 2012 Summer Olympic Games, held in London.

American actor John Ratzenberger, best known as mailman Cliff Clavin from the television series Cheers, has also contributed voice-acting to every animated Pixar feature film.

Model and actress Denise Richards is best known for her role in 1998's Wild Things, and for her tumultuous marriage and divorce with actor Charlie Sheen.

Actress Lisa Rinna is known for her roles on Days of Our Lives and Melrose Place, and for appearing on TV's Dancing with the Stars.

Known as the "King of Motown," Smokey Robinson founded the R&B group The Miracles, which delivered 37 Top 40 hits for Motown Records.

Melissa Rycroft is known for her engagement and break-up on the 13th season of The Bachelor, and for winning 2012's Dancing with the Stars: All-Stars.

Singer Nicole Scherzinger is the former lead singer of the successful all-girl band the Pussycat Dolls.

Monica Seles is a former No. 1-ranked women's tennis player with nine Grand Slam titles. She is also an author and speaker, and competed on Dancing with the Stars in 2008.

Emmy Award-winning British actress Jane Seymour starred on the dramatic TV series Dr. Quinn: Medicine Woman, and was in the James Bond film Live and Let Die.

Comedian and actress Sherri Shepherd has co-hosted the popular daytime talk show The View since 2007.

After her impressive 2006 debut, professional dancer Karina Smirnoff went on to star in six more seasons of Dancing with the Stars.

Goalkeeper Hope Solo helped the U.S. Women's Soccer Team win gold medals at the 2008 and 2012 Olympic Games. She also appeared on Dancing with the Stars in 2011.

Jerry Springer is an American talk show host, best known for his tabloid talk show, The Jerry Springer Show. He is also a former mayor of Cincinnati, Ohio.

American football player Lawrence Taylor was a member of the New York Giants and is considered one of the best linebackers in the history of the game.

Toni Braxton is an R&B singer-songwriter and actress best known for the hits "Un-Break My Heart," "You Mean the World to Me" and "Breathe Again."

Actor Jack Wagner rose to fame as the rocker Frisco Jones on the daytime soap opera General Hospital.

Wide receiver Hines Ward played his entire 14-year NFL career with the Pittsburgh Steelers, helping lead the team to wins in Super Bowls XL and XLIII.

Actor Jaleel White rose to fame as the nerdy boy-next-door Steve Urkel on the 1990s hit sitcom Family Matters.

Model Kendra Wilkinson was one of Hugh Hefner's Playboy girlfriends. She co-starred in the TV series The Girls Next Door about the Playboy Mansion.

Wendy Williams is a radio DJ and TV talk show host known for her no-nonsense attitude and brash on-air personality.

Metta World Peace, formerly Ron Artest, is a professional basketball player known for his fierce defensive play and 2011 name change.

Steve Wozniak is an American computer scientist best known as one of the founders of Apple and the inventor of the Apple II computer.

Kristi Yamaguchi is a U.S. figure skater and Olympic gold medalist. She is also an author, philanthropist and founder of the Always Dream Foundation.

Ian Ziering is an actor known for his role on the teen soap opera Beverly Hills 90210, and for appearing on TV's Dancing with the Stars.