Question: Which character played by Andy Serkis is commander of a group which attempts to depose the New Republic with the aid of a mysterious group of elite warriors led by Kylo Ren?

Context articles: Luke Skywalker
Gollum: How We Made Movie Magic
Padmé Amidala
First Order (Star Wars)
Kylo Ren
Supreme Leader Snoke
Star Wars: The Force Awakens
Princess Leia
General Hux
Stormtrooper (Star Wars)

Luke Skywalker is a fictional character and the main protagonist of the original film trilogy of the "Star Wars" franchise created by George Lucas.
 The character, portrayed by Mark Hamill, is an important figure in the Rebel Alliance's struggle against the Galactic Empire.
 He is the twin brother of Rebellion leader Princess Leia Organa of Alderaan, a friend and brother-in-law of smuggler Han Solo, an apprentice to Jedi Masters Obi-Wan "Ben" Kenobi and Yoda, the son of fallen Jedi Anakin Skywalker (Darth Vader) and Queen of Naboo/Republic Senator Padmé Amidala and maternal uncle of Kylo Ren / Ben Solo.
 The now non-canon "Star Wars" expanded universe depicts him as a powerful Jedi Master, husband of Mara Jade, the father of Ben Skywalker and maternal uncle of Jaina, Jacen and Anakin Solo.
"Gollum" details how a three-week commission for Andy Serkis to provide a voice-over for Gollum grew into a five-year commitment to breathe life and soul into "The Lord of the Rings"' most challenging creation.
 Andy Serkis tackles various subjects throughout the book, including character conception (Gollum's "cough" is derived from his cat coughing up a hairball) as well as the hard work it took to act out Gollum and replace it with CGI.
 He also discusses the controversy of whether he should have been eligible for an Academy Award for his work as Gollum.
Padmé Amidala (born Padmé Naberrie) is a fictional character in the "Star Wars" franchise, appearing in the prequel trilogy portrayed by actress Natalie Portman.
 She served as the Princess of Theed and later Queen of Naboo.
 After her reign, she became a senator in the Galactic Senate, an anti-war movement spokesperson, and co-founder of the opposition-faction that later emerged as the Rebel Alliance.
 She was secretly married to the Jedi Anakin Skywalker, and the biological mother of Luke Skywalker and Leia Organa, which makes her the mother-in-law of Han Solo, and the grandmother of Kylo Ren.
The First Order is a rump state and military dictatorship in the "Star Wars" franchise, introduced in the 2015 film "".
 Formed following the fall of the Galactic Empire after the events of "Return of the Jedi" (1983), the organization has amassed its power in secret over three decades.
 In "The Force Awakens", the First Order is commanded by Supreme Leader Snoke and has begun executing its plan to depose the New Republic and reclaim control of the galaxy.
 The Knights of Ren are a mysterious group of elite warriors within their ranks, led by Kylo Ren.
Kylo Ren is a fictional character in the "Star Wars" franchise.
 Introduced in the 2015 film "", he is portrayed by Adam Driver.
 Kylo Ren is the chosen name of Ben Solo, the son of original "Star Wars" trilogy characters Han Solo and Leia Organa.
 Though trained by his uncle Luke Skywalker as a Jedi, he has been seduced to the dark side of the Force by Supreme Leader Snoke, and aspires to be as powerful as his grandfather, Darth Vader.
 Kylo Ren is also the master of the Knights of Ren, and a commander for the First Order, an organization spawned from the fallen Galactic Empire.
 He is featured in "The Force Awakens" media and merchandising, and will appear in the film's forthcoming sequel, "" (2017).
Supreme Leader Snoke is a fictional character in the "Star Wars" franchise.
 Introduced in the 2015 film "", he is a CGI character voiced and performed by Andy Serkis.
 Snoke is the leader of the First Order, a military junta resurrected from the fallen Galactic Empire, which seeks to reclaim control of the galaxy.
 Powerful with the Force, he has seduced Kylo Ren to the dark side.
Star Wars: The Force Awakens (also known as Star Wars: Episode VII – The Force Awakens) is a 2015 American epic space opera film co-written, co-produced and directed by J. J. Abrams.
 The sequel to 1983's "Return of the Jedi", "The Force Awakens" is the first installment of the "Star Wars" sequel trilogy.
 It stars Harrison Ford, Mark Hamill, Carrie Fisher, Adam Driver, Daisy Ridley, John Boyega, Oscar Isaac, Lupita Nyong'o, Andy Serkis, Domhnall Gleeson, Anthony Daniels, Peter Mayhew, and Max von Sydow.
 Produced by Lucasfilm Ltd. and Abrams' production company Bad Robot Productions and distributed worldwide by Walt Disney Studios Motion Pictures, "The Force Awakens" was the first "Star Wars" film not produced by franchise creator George Lucas.
 Set 30 years after "Return of the Jedi", it follows Rey, Finn and Poe Dameron's search for Luke Skywalker and their fight alongside the Resistance, led by veterans of the Rebel Alliance, against Kylo Ren and the First Order, a successor to the Galactic Empire.
Princess Leia Organa of Alderaan (also Senator Leia Organa or General Leia Organa) is a fictional character in the "Star Wars" franchise, portrayed in films by Carrie Fisher.
 Introduced in the original "Star Wars" film in 1977, Leia is princess of the planet Alderaan, a member of the Imperial Senate and an agent of the Rebel Alliance.
 She thwarts the sinister Sith Lord Darth Vader and helps bring about the destruction of the Empire's cataclysmic superweapon, the Death Star.
 In "The Empire Strikes Back" (1980), Leia commands a Rebel base and evades Vader as she falls in love with the smuggler, Han Solo.
 In "Return of the Jedi" (1983), Leia leads the operation to rescue Han from the crime lord Jabba the Hutt, and is revealed to be Vader's daughter and the twin sister of Luke Skywalker.
 The prequel film "" (2005) establishes that the twins' mother is Senator (and former queen) Padmé Amidala of Naboo, who dies after childbirth.
 Leia is adopted by Senator Bail and Queen Breha Organa of Alderaan.
 In "" (2015), Leia is the founder and General of the Resistance against the First Order and has a son with Han named Ben, who goes by the name Kylo Ren.
General Armitage Hux is a fictional character in the "Star Wars" franchise.
 First introduced in the 2015 film "", he is portrayed by Domhnall Gleeson.
 He is a ruthless commander in a power struggle with Kylo Ren for the First Order leadership, and being exceeded only by Supreme Leader Snoke.
 The character first featured in "The Force Awakens" media and merchandising, and will appear in the film's forthcoming sequel, "".
A stormtrooper is a fictional soldier in the "Star Wars" franchise created by George Lucas.
 Introduced in "Star Wars" (1977), the stormtroopers are the main ground force of the Galactic Empire, under the leadership of Emperor Palpatine and his commanders, most notably Darth Vader and Grand Moff Tarkin.
 In "" (2015), the upgraded stormtroopers serve the First Order, under the leadership of Supreme Leader Snoke and his commanders, most notably Kylo Ren, General Hux, and Captain Phasma.