Question: Vertical Limit stars which actor who also played astronaut Alan Shepard in "The Right Stuff"?
Context: Moon Shot: The Inside Story of America's Race to the Moon is a book written by Mercury Seven astronaut Alan Shepard, with NBC News correspondent Jay Barbree and Associated Press space writer Howard Benedict.  Astronaut Donald K. "Deke" Slayton is also listed as an author, although he died before the project was completed and was an author in name only.  The book was published in 1994.  It was turned into a television miniseries that aired on TBS in the United States in 1994.  The miniseries was narrated by Barry Corbin (as Slayton) and featured interviews with several American astronauts as well as a few Russian cosmonauts.  Slayton died before the miniseries completed production in 1993 and the miniseries is dedicated to his memory. USNS "Alan Shepard" (T-AKE-3) is a "Lewis and Clark"-class dry cargo ship in the United States Navy.  It is named for astronaut Rear Admiral Alan Shepard (1923–1998). The Right Stuff is a 1983 American epic historical drama film.  It was adapted from Tom Wolfe's best-selling 1979 book of the same name about the Navy, Marine and Air Force test pilots who were involved in aeronautical research at Edwards Air Force Base, California, as well as the Mercury Seven, the seven military pilots who were selected to be the astronauts for Project Mercury, the first manned spaceflight by the United States.  "The Right Stuff" was written and directed by Philip Kaufman and stars Ed Harris, Scott Glenn, Sam Shepard, Fred Ward, Dennis Quaid and Barbara Hershey.  Levon Helm is the narrator in the introduction and elsewhere in the film, as well as having a co-starring role as Air Force test pilot Jack Ridley. Mercury-Redstone 3, or Freedom 7, was the first United States human spaceflight, on May 5, 1961, piloted by astronaut Alan Shepard.  It was the first manned flight of Project Mercury, the objective of which was to put an astronaut into orbit around the Earth and return him safely.  Shepard's mission was a 15-minute suborbital flight with the primary objective of demonstrating his ability to withstand the high g forces of launch and atmospheric re-entry. Vertical Limit is a 2000 American survival thriller film directed by Martin Campbell and written by Robert King.  The film stars Chris O'Donnell, Bill Paxton, Robin Tunney and Scott Glenn.  The film was released on December 8, 2000 in the United States by Columbia Pictures, receiving mixed reviews from critics and grossing $215 million worldwide. Theodore Scott Glenn (born January 26, 1941), better known as Scott Glenn, is an American actor.  His roles have included Wes Hightower in "Urban Cowboy" (1980), astronaut Alan Shepard in "The Right Stuff" (1983), Emmett in "Silverado" (1985), Commander Bart Mancuso in "The Hunt for Red October" (1990), Jack Crawford in "The Silence of the Lambs" (1991), Roger in "Training Day" (2001), Ezra Kramer in "The Bourne Ultimatum" (2007), Kevin Garvey, Sr. in "The Leftovers" (2014–2017) and as Stick in both "Daredevil" (2015–) and "The Defenders" (2017). Sam Shepard was an American actor, screenwriter, playwright, director, and author.  The following is his screen filmography as an actor, screenwriter, and director.  Shepard was nominated for the Academy Award for Best Supporting Actor for his role as Chuck Yeager in the 1983 film "The Right Stuff".  The following year, he was nominated for the BAFTA Award for Best Adapted Screenplay for co-writing "Paris, Texas" (1984).  For his role in the 1999 television film "Dash and Lilly", he was nominated for the Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie and the Golden Globe Award for Best Actor – Miniseries or Television Film. Jack Kinzler (January 9, 1920 – March 4, 2014) was a NASA engineer, the former chief of the Technical Services Center at NASA's Lyndon B. Johnson Space Center, known within the agency as Mr. Fix It.  He was awarded the NASA Distinguished Service Medal for creating the solar shield that saved Skylab after the original micrometeoroid shield was lost during launch of the station.  His other contributions included the flagstaff and plaques used on the Moon for each of the Apollo program Moon landings and the special six iron golf club head with which Apollo 14 astronaut Alan Shepard made his two famous golf drives on the Moon. Samuel Shepard Rogers III (November 5, 1943 – July 27, 2017), known professionally as Sam Shepard, was an American playwright, actor, author, screenwriter, and director whose body of work spanned half a century.  He won 10 Obie Awards for writing and directing, the most given to any writer or director.  He wrote 44 plays as well as several books of short stories, essays, and memoirs.  Shepard received the Pulitzer Prize for Drama in 1979 for his play "Buried Child".  He was nominated for an Academy Award for Best Supporting Actor for his portrayal of pilot Chuck Yeager in "The Right Stuff" (1983).  Shepard received the PEN/Laura Pels International Foundation for Theater Award as a master American dramatist in 2009. " New York" magazine described him as "the greatest American playwright of his generation." The Right Stuff is a 1979 book by Tom Wolfe about the pilots engaged in U.S. postwar research with experimental rocket-powered, high-speed aircraft as well as documenting the stories of the first Project Mercury astronauts selected for the NASA space program.  "The Right Stuff" is based on extensive research by Wolfe, who interviewed test pilots, the astronauts and their wives, among others.  The story contrasts the "Mercury Seven" and their families with test pilots such as Chuck Yeager, who was considered by many contemporaries as the best of them all, but who was never selected as an astronaut.
Answer: Scott Glenn