Nathalie Kelley (born March 3, 1985) is a Peruvian-Australian actress known for her debut role as Neela in the 2006 action film "".
 Kelley later had supporting roles on television, include Dani Alvarez in ABC police procedural "Body of Proof" (2011–2012), and Grace in the first season of the Lifetime drama series "Unreal" (2015).
 Kelley recently featured in the final season of the CW television series "The Vampire Diaries" in the role of Sybil.
 She will also star in The CW television series "Dynasty" as Cristal Flores.
"Supergirl" is an American television series developed by Greg Berlanti, Ali Adler, and Andrew Kreisberg based on the characters created by Jerry Siegel and Joe Shuster in the "Superman" franchise and Al Plastino and Otto Binder's character Supergirl (Kara Zor-El).
 The series stars Melissa Benoist in the titular role of Kara Zor-El / Kara Danvers / Supergirl, as well as Mehcad Brooks, Chyler Leigh, Jeremy Jordan, David Harewood, and Calista Flockhart, with Chris Wood, and Floriana Lima joining in later seasons.
 In addition to original characters, several other characters from DC Comics universe also appear throughout the series.
 For its first season, "Supergirl" aired on CBS, before moving to The CW for its second season.
"The Flash" is an American action television series developed by Greg Berlanti, Andrew Kreisberg, and Geoff Johns, airing on The CW.
 It is based on the DC Comics character Barry Allen / Flash, a costumed crimefighter with the power to move at superhuman speeds.
 It is a spin-off from "Arrow", existing in the same fictional universe.
 The series follows Barry Allen, portrayed by Grant Gustin, a crime scene investigator who gains superhuman speed, which he uses to fight criminals, including others who have also gained superhuman abilities.
 "The Flash" was renewed in March 2016 for a third season, which premiered on October 4, 2016.
 On January 8, 2017, The CW renewed the series for a fourth season, which is scheduled to debut on October 10, 2017.
 s of 23, 2017, episodes of "The Flash " have aired, concluding the first half of the  season.
Lar Gand, known primarily as Mon-El (and alternatively as Valor and M'Onel), is a fictional superhero appearing in American comic books published by DC Comics, commonly in association with the Legion of Super-Heroes, Superboy, and Superman.
 The character has been reinterpreted over the years, but in all versions, he serves as a hero with abilities similar to those of Superman, sometimes serving as a substitute for him.
"Duet" is the seventeenth episode of the third season of The CW television series "The Flash", which aired on March 21, 2017.
 The episode was written by Aaron Helbing and Todd Helbing from a story by Greg Berlanti and Andrew Kreisberg, and directed by Dermott Daniel Downs.
 The episode features a musical crossover with "Supergirl" and reunites Grant Gustin and Melissa Benoist with their former "Glee" co-star Darren Criss, who portrays the Music Meister.
 Jesse L. Martin also reunites with Jeremy Jordan, whom he previously worked with in the 2012 musical film "Joyful Noise".
 The story begins at the end of the "Supergirl" episode "Star-Crossed" on March 20, 2017, which sees Kara Danvers / Supergirl (Benoist) being put in a coma by Music Meister, with Mon-El (Chris Wood) and J'onn J'onzz / Martian Manhunter (David Harewood) bringing her to Earth-1 in hope that Team Flash can save her.
"The Flash" is an American television series developed by writer-producers Greg Berlanti, Andrew Kreisberg and Geoff Johns, based on the DC Comics character the Flash.
 The series premiered in the United States on October 7, 2014, on The CW television network.
 It is a spin-off from "Arrow", a show in the same universe.
 The first season follows police forensic investigator Barry Allen (Grant Gustin), who develops super-speed after he is struck by lightning.
 In his attempt to learn about his powers and how to use them for good, he is assisted by S.T.A.R. Labs' Dr. Caitlin Snow (Danielle Panabaker), Cisco Ramon (Carlos Valdes) and Dr. Harrison Wells (Tom Cavanagh).
 Barry also tries to solve the murder of his mother (Michelle Harrison) by a superhuman attacker (Matt Letscher) when he was eleven.
 The murder investigation unjustly imprisoned his father (John Wesley Shipp), leaving detective Joe West (Jesse L. Martin), father of his best friend, Iris (Candice Patton), to take in the young Barry.
 The memory of his mother's murder and his father's framing and later killing motivates Barry to put his personal needs aside and use his powers to fight those who would hurt the innocent, shaping him into the Flash.
Candice Kristina Patton (born June 24, 1988) is an American actress.
 Patton is best known for her role as Iris West in The CW television series "The Flash" and as her recurring role as Tori in the BET television series "The Game".
Christopher Charles Wood (born April 14, 1988) is an American actor.
 He is known for his role as Malachai "Kai" Parker in the sixth season of The CW's television series "The Vampire Diaries" in 2014, after previously appearing on The CW's "The Carrie Diaries" in the role of writer Adam Weaver in 2013.
 He also starred in the 2016 CW television series "Containment" in the leading role of Atlanta police officer Jake Riley.
 Since 2016, he has played Mon-El on The CW superhero drama series "Supergirl".
Sheriff of Balboa County Don Lamb is a fictional character played by Michael Muhney on the UPN/The CW television series "Veronica Mars", which debuted during the fall 2004 season on UPN.
"Killer Frost" is the seventh episode of the third season of The CW television series "The Flash".
 The episode was written by Andrew Kreisberg and Brooke Roberts, with a story by Judalina Neira and directed by Kevin Smith.
 It was first broadcast on November 22, 2016 on The CW.
 The show is itself a spin-off of the show "Arrow", where many characters in the series were introduced during the second season.
 The episode revolves around Caitlin Snow (Danielle Panabaker) slowly losing control of her Killer Frost persona after using her powers to save Barry from Savitar.
 In an attempt to get rid of her powers, Killer Frost kidnaps Julian to help her find Savitar and is forced to battle both Barry and Cisco.

Question: What are the alternate names of the character played by Chris Wood in The CW television series, "The Flash?"
Answer: Valor and M'Onel