Captain America is a fictional character appearing in American comic books published by Marvel Comics.
 Created by cartoonists Joe Simon and Jack Kirby, the character first appeared in "Captain America Comics" #1 (cover dated March 1941) from Timely Comics, a predecessor of Marvel Comics.
 Captain America was designed as a patriotic supersoldier who often fought the Axis powers of World War II and was Timely Comics' most popular character during the wartime period.
 The popularity of superheroes waned following the war and the "Captain America" comic book was discontinued in 1950, with a short-lived revival in 1953.
 Since Marvel Comics revived the character in 1964, Captain America has remained in publication.
Cyber is a fictional supervillain appearing in American comic books published by Marvel Comics.
 The character is depicted usually as an enemy of Wolverine of the X-Men.
 Created by writer Peter David and artist Sam Kieth, he first appeared in "Marvel Comics Presents" #85 (September 1991), though his appearance was obscured by a trench coat and hat.
 He was first fully seen and named in "Marvel Comics Presents" #86 (September 1991).
Donald Pierce is a fictional supervillain appearing in American comic books published by Marvel Comics.
 The character is depicted as a cyborg and is commonly an enemy of the X-Men.
Bloodshed (real name Wyndell Dichinson) is a fictional supervillain appearing in American comic books published by Marvel Comics.
 It is also the name of a supervillain in Marvel's Razorline imprint, as well as a character in comics from an acquired company, Malibu Comics.
Symkaria is a fictional Eastern European country appearing in American comic books published by Marvel Comics.
 The country was created by Tom DeFalco for the Marvel Universe.
 It is one of several fictional countries in Eastern Europe created for Marvel Comics.
 The fictional country is mostly known as being the home of Silver Sable and the Wild Pack team though it is used throughout the Marvel Universe.
 The country has appeared in issues of "Silver Sable", "Silver Sable and the Wild Pack", "The Amazing Spider-Man", "Thunderbolts", "Citizen V and the V-Battalion", and other comics published by Marvel Comics.
"Dark Reign" is a 2008–2009 comic book branding used by Marvel Comics.
 It deals with the aftermath of the "Secret Invasion" storyline, which led to a shift of power in the Marvel Universe toward Norman Osborn.
 The title "Dark Reign" refers to Osborn's rise to national power and the ramifications thereof.
 Joe Quesada, then-editor-in-chief of Marvel Comics, stated that "Dark Reign is not really an event, it's what's happening in the Marvel Universe."
 He believes that "Dark Reign leads to an interesting place in the Marvel Universe.
 I think you'll see a pulling back at the end of Dark Reign, but you'll understand at the end of it what we were trying to get to."
Logan is a 2017 American epic neo-western superhero drama film produced by Marvel Entertainment, TSG Entertainment, and The Donners' Company, and distributed by 20th Century Fox.
 It is the tenth installment in the "X-Men" film series, as well as the third Wolverine solo film following "" (2009) and "The Wolverine" (2013).
 The film, which takes inspiration from the "Old Man Logan" comic-book series by Mark Millar and Steve McNiven, follows an aged Wolverine defending his daughter Laura Kinney from the villainous Reavers led by Zander Rice and Donald Pierce.
Lord Havok is a fictional character, a DC Comics supervillain, part of the supervillain team called the Extremists.
 He is a genius equipped with a powered armor.
 Lord Havok first appeared in "Justice League Europe" #15 (June 1990).
 He is a nod to the Marvel comics supervillain, Doctor Doom.
The Absorbing Man (Carl "Crusher" Creel) is a fictional supervillain appearing in American comic books published by Marvel Comics.
 He first appeared in "Journey into Mystery" #114, cover dated March 1965, created by writer Stan Lee and writer/artist Jack Kirby.
 Over the years he has played a part on several Marvel Comics crossovers such as the original "Secret Wars" and "Fear Itself".
The Reavers are a fictional team of criminal cyborgs appearing in American comic books published by Marvel Comics.
 The most significant team of Reavers were dedicated to the destruction of the mutant X-Men, and a number of them especially wanted to take revenge on one particular X-Man, Wolverine.
 The name was originally used by a gang of Australian cyborgs.
 The name later referred to a group under the leadership of Donald Pierce, consisting of the three survivors from the original Reavers along with other cyborgs.

Question: Who is a supervillain by Marvel Comics that leads the Reavers?
Answer: Donald Pierce