Question: Which American actor is related to James Gunn and is a member of the cast of Guardians of the Galaxy Vol. 2?
Context: Gamora Zen Whoberi Ben Titan ( ) is a fictional character appearing in American comic books published by Marvel Comics.  Created by Jim Starlin, the character first appeared in "Strange Tales" #180 (June 1975).  Gamora is the adopted daughter of Thanos, and the last of her species.  Her powers include superhuman strength and agility and an accelerated healing factor.  She also is an elite combatant, being able to best most of the opponents in the galaxy.  She is a member of the group known as the Infinity Watch.  The character played a role in the 2007 crossover comic book event "", and became a member of the titular team in its spin-off comic, "Guardians of the Galaxy".  She has been featured in a variety of associated Marvel merchandise.  Zoe Saldana plays the character in the 2014 live-action film "Guardians of the Galaxy" and its sequel "Guardians of the Galaxy Vol.  2". Laura Jane Haddock (born 21 August 1985) is an English actress.  She is best known for portraying Kacie Carter in "Honest", Lucrezia in "Da Vinci's Demons", Meredith Quill in "Guardians of the Galaxy" and its sequel "Guardians of the Galaxy Vol.  2", Alison in "The Inbetweeners Movie" and Viviane Wembly in "". Karen Sheila Gillan (born 28 November 1987) is a Scottish actress, director, and screenwriter.  She is known for the role of Amy Pond, companion to the Eleventh Doctor, in the BBC science fiction series "Doctor Who" (2010–13).  In film, she has starred as Jane Lockhart in "Not Another Happy Ending" (2013), Kaylie Russell in the horror film "Oculus" (2013), and Nebula in the Marvel film "Guardians of the Galaxy" (2014) and its sequel "Guardians of the Galaxy Vol.  2" (2017).  She took part in the upcoming films "" (2017), "" (2018) and its untitled sequel (2019).  In 2017, she wrote and directed her first feature film, "The Party's Just Beginning". Guardians of the Galaxy Vol.  2: Awesome Mix Vol.  2 (Original Motion Picture Soundtrack) is the soundtrack album for the Marvel Studios film "Guardians of the Galaxy Vol.  2".  Featuring the songs present on Peter Quill's mixtape in the film, the album was released by Hollywood Records on April 21, 2017.  A separate film score album, Guardians of the Galaxy Vol.  2 (Original Score), composed by Tyler Bates, was also released by Hollywood Records on the same date. Guardians of the Galaxy (retroactively referred to as Guardians of the Galaxy Vol.  1) is a 2014 American superhero film based on the Marvel Comics superhero team of the same name, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures.  It is the tenth film in the Marvel Cinematic Universe.  The film was directed by James Gunn, who wrote the screenplay with Nicole Perlman, and features an ensemble cast including Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel, Bradley Cooper, Lee Pace, Michael Rooker, Karen Gillan, Djimon Hounsou, John C. Reilly, Glenn Close, and Benicio del Toro.  In "Guardians of the Galaxy", Peter Quill forms an uneasy alliance with a group of extraterrestrial misfits who are fleeing after stealing a powerful artifact. Tyler Bates (born June 5, 1965) is an American musician, music producer, and composer for films, television, and video games.  Much of his work is in the action and horror film genres, with films like "Dawn of the Dead, 300, Sucker Punch," and "John Wick."  He has collaborated with directors like Zack Snyder, Rob Zombie, Neil Marshall, William Friedkin, Scott Derrickson, and James Gunn.  With Gunn, he has scored every one of the director's films; including "Guardians of the Galaxy", which became one of the highest grossing domestic movies of 2014, and its 2017 sequel.  In addition, he is also the lead guitarist of the American rock band Marilyn Manson, and produced its albums "The Pale Emperor" and "Heaven Upside Down". James Gunn (born August 5) is an American screenwriter, director, producer, novelist, actor, and musician.  He started his career as a screenwriter in the mid-1990s, writing the scripts for "Tromeo and Juliet" (1996), "Scooby-Doo" (2002) and its sequel "" (2004), and the 2004 version of "Dawn of the Dead".  He then started working also as a director, starting with "Slither" (2006).  He subsequently wrote and directed the web series "James Gunn's PG Porn", and the superhero films "Super" (2010), "Guardians of the Galaxy" (2014) and "Guardians of the Galaxy Vol.  2" (2017). James Gunn's PG Porn is a web series created by brothers James Gunn, Brian Gunn, and Sean Gunn.  It consists of a series of pornography spoofs, with a humorous event occurring just before the supposed commencement of pornographic sexual acts.  Each episode pairs a mainstream actor with a pornographic actress or model.  The tagline is, "For people who love everything about Porn...except the sex." Sean Gunn is an American actor, best known for his roles as Kirk Gleason on the television show "Gilmore Girls" (2000–2007) and Kraglin in the Marvel Cinematic Universe, beginning with "Guardians of the Galaxy" (2014).  He is the younger brother of filmmaker James Gunn, and often appears in his sibling's films. Guardians of the Galaxy Vol.  2 is a 2017 American superhero film based on the Marvel Comics superhero team Guardians of the Galaxy, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures.  It is the sequel to 2014's "Guardians of the Galaxy" and the fifteenth film in the Marvel Cinematic Universe.  The film is written and directed by James Gunn and stars an ensemble cast featuring Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel, Bradley Cooper, Michael Rooker, Karen Gillan, Pom Klementieff, Elizabeth Debicki, Chris Sullivan, Sean Gunn, Sylvester Stallone, and Kurt Russell.  In "Guardians of the Galaxy Vol.  2", the Guardians travel throughout the cosmos as they help Peter Quill learn more about his mysterious parentage.
Answer: Sean Gunn