Question: Caitlin Pike was a character in JAG that was portrayed by an actress who appeared in Pretty Little Liars, and was a dancer in what form of dance?

full_context: Document 1: Diane Neal: Diane Neal (born November 17, 1976 ) is an American actress best known for her role as Casey Novak on "", which she played from 2003 to 2008, then reprised her role from 2011 to 2012. She has portrayed Coast Guard Investigative Service Special Agent Abigail Borin in the "NCIS" franchise since 2009, appearing as an annual special guest star in "NCIS" since its seventh season, and as a recurring guest star in "".
Document 2: Kathryn Janeway: Vice Admiral Kathryn Janeway is a fictional character in the "Star Trek" franchise. As the captain of the Starfleet starship USS "Voyager", she was the lead character on the television series "", and later a Starfleet admiral, as seen in the 2002 feature film "". Although other female captains had appeared in previous "Star Trek" episodes and other media, she is, to date, the only one to serve as the central character of a "Star Trek" TV series. She has also appeared in other media including books, movies (notably "Nemesis"), and video games. In all of her screen appearances, she was played by actress Kate Mulgrew.
Document 3: Mary Drake: Mary Drake is a fictional character created by I. Marlene King and portrayed by Andrea Parker in the American television series "Pretty Little Liars". "Pretty Little Liars" is a television adaptation of the novel series of the same name written by Sara Shepard, in which the antagonist Alison DiLaurentis has an identical twin sister, Courtney DiLaurentis. It is believed that Mary is the on-screen counterpart of Courtney, though her recent characterization is more in line with Alison. The character makes her first official introduction during the sixth-season finale "Hush, Hush, Sweet Liars". The Liars discover that Mary is Jessica DiLaurentis' identical twin sister, a former patient at Radley Sanitarium who is Charlotte's biological mother. In "The DArkest Knight", Drake is also revealed to be Spencer Hastings' biological mother. During "Till Death Do Us Part", the elusive A.D. is revealed to be Alex Drake, Spencer's younger identical twin sister. Alex believed the Liars knew who was accountable for Charlotte's murder and was also set on physically replacing Spencer due to being jealous of the life that she had.
Document 4: Janel Parrish: Janel Meilani Parrish (born October 30, 1988) is an American actress, singer, songwriter, and pianist. She is best known for playing Mona Vanderwaal on the Freeform mystery drama series "Pretty Little Liars". She is also known for portraying Young Cosette in the Broadway production of "Les Misérables" (1996), and Jade in the teen comedy film "Bratz" (2007). In 2014, Parrish participated in the 19th season of "Dancing with the Stars", taking third place.
Document 5: Briana Evigan: Briana Barbara-Jane Evigan (born October 23, 1986) is an American actress and dancer. She is best known for her roles as Andie West in the "Step Up" series and Cassidy Tappan in "Sorority Row". She started dancing at the age of 9 and is still dancing as part of her career today. Evigan has been noted as a Scream Queen for starring in many horror and thriller films, such as "Sorority Row", "Burning Bright", "Mother's Day", "The Devil's Carnival", its sequel, "", "Stash House", "Mine Games", and the second season of "".
Document 6: Katee Sackhoff: Kathryn Ann "Katee" Sackhoff (born April 8, 1980) is an American actress best known for playing Lieutenant Kara "Starbuck" Thrace on the Sci Fi Channel's television program "Battlestar Galactica" (2003–2009). She was nominated for four Saturn Awards for her work on "Battlestar Galactica", winning the award for Best Supporting Actress on Television in 2005.
Document 7: Pamela Anderson: Pamela Denise Anderson (born July 1, 1967) is a Canadian American actress and model. Anderson is best known for her roles on the television series "Home Improvement", "Baywatch" and "V.I.P." after rising to fame as Playmate of the Month for "Playboy" magazine in February 1990. Anderson has also appeared in films such as "Raw Justice" (1994), "Barb Wire" (1996) and "Blonde and Blonder" (2008) and was inducted into Canada's Walk of Fame in 2006.
Document 8: Dancer, Texas Pop. 81: Dancer, Texas Pop. 81 is a 1998 comedy-drama film starring Breckin Meyer, Peter Facinelli, Eddie Mills, and Ethan Embry.
Document 9: Caitlin Pike: Commander Caitlin "Kate" Pike, USN (JAGC) was a character in the military TV series "JAG" and was portrayed by Andrea Parker. She appeared in episodes "A New Life", "A New Life Part 2", "Brig Break", "Ares" and "Touch and Go". Archive footage was used in episodes "Lifeline" and "Shifting Sands".
Document 10: Andrea Parker: Andrea Nicole Parker (born March 8, 1970) is an American television actress and former ballet dancer. She is known for her roles on "ER", "The Pretender", "Less than Perfect", "Desperate Housewives", and "Pretty Little Liars".
Document 11: Sibel Galindez: Sibel Catherine Galindez née Ergener (born November 25, 1967), is an American actress primarily from 1993 until 2002. She has starred in range of Movies, TV Shows and Series such as The Last Big Thing, Sliders and Beverly Hills, 90210. She most notably portrayed the role of Lieutenant Elizabeth "Skates" Hawkes and Dixie on the CBS TV Series, JAG. She has also worked as a Performing Arts Director at Portsmouth Abbey School in Portsmouth, Rhode Island. She is a graduate of Harvard University and married an actual US Navy Judge Advocate General (JAG) officer, Peter Galindez whom she met aboard the USS John C. Stennis in 1999.
Document 12: C. J. Cregg: Claudia Jean "C. J." Cregg is a character played by Allison Janney on the television serial drama "The West Wing". The role earned Janney the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series (2000, 2001) and Outstanding Lead Actress in a Drama Series (2002, 2004). From the beginning of the series until the sixth season, she is White House Press Secretary in the administration of President Josiah Bartlet. After that, she is White House Chief of Staff until the last episode, when Bartlet's successor is inaugurated. The character is supposedly loosely based on Clinton Press Secretary Dee Dee Myers, who served as a consultant to the show.
Document 13: Aria Montgomery: Aria Marie Montgomery is a fictional character in the "Pretty Little Liars" series by Sara Shepard. She is portrayed by Lucy Hale in the television adaptation, which premiered on ABC Family in June 2010. Lucy Hale was named Choice Summer TV Star: Female at the 2010 Teen Choice Awards and 2011 Teen Choice Awards for her role in the series.
Document 14: Spencer Hastings: Spencer Hastings is a fictional character, one of the five main characters who appeared in the "Pretty Little Liars" novels and its television adaptation. Created in 2006 by American writer Sara Shepard, she is member of the group known as the Liars, and is best friend to the four other members, who are also protagonists. The character was developed for television by the series' showrunner I. Marlene King, and appeared in each of the show’s 160 episodes during its seven-years-long run, from its premiere on June 8, 2010 to its finale on June 27, 2017. Spencer is known in the fictional town of Rosewood for her sophisticated charm and dedication to life goals. She is part of the extremely rich, powerful, old family Hastings; Spencer's parents, Veronica and Peter, are both linked to politics and her sister, Melissa, is likewise intelligent and uses her sarcasm and success to affect Spencer psychologically whenever possible. Spencer's characteristics and story have the same methodology in both books and television; however, there are some perceptual differences between the versions, since the television series doesn't follows the books' scripts.
Document 15: Aaron Kelly (Battlestar Galactica): Captain Aaron Kelly is a fictional character, played by Ty Olsson, in the reimagined "Battlestar Galactica" TV program. The character has been part of the show since the 2003 Miniseries. Captain Kelly is the landing signal officer (LSO) aboard the Battlestar "Galactica". At the beginning of the second season, Captain Kelly was third in line of command, after then-Commander Adama and then-Colonel Tigh. The character of Aaron Kelly has no direct analog in the original "Battlestar Galactica".
ground_truth: ballet