Christopher Plummer, one of the few actors in history to win an Academy Award, an Emmy Award and a Tony Award, has died at the age of 91.

Plummer is perhaps best known for his role as Captain George Von Trapp in the 1965 musical film "The Sound of Music." But he continued to earn plaudits well into his 80s.

He won the Oscar for best supporting actor at the age of 82, making him the oldest person to win an acting award. He was also nominated for an Oscar at the age of 88.

Plummer, right, stars in the 1958 film "Stage Struck" with Henry Fonda. It was the first movie role for Plummer, who had previously worked in theater and television.
Plummer, right, stars in the 1958 film "Stage Struck" with Henry Fonda. It was the first movie role for Plummer, who had previously worked in theater and television.
Rko/Kobal/Shutterstock
Plummer also appeared in the film "Wind Across the Everglades" in 1958.
Plummer also appeared in the film "Wind Across the Everglades" in 1958.
FilmPublicityArchive/United Archives/Getty Images
Plummer appears with Inger Stevens in a television movie in 1961. It was a DuPont Show of the Month adaptation of Anthony Hope's novel "The Prisoner of Zenda."
Plummer appears with Inger Stevens in a television movie in 1961. It was a DuPont Show of the Month adaptation of Anthony Hope's novel "The Prisoner of Zenda."
CBS Photo Archive/Getty Images
Plummer plays the emperor Commodus in "The Fall of the Roman Empire" (1964).
Plummer plays the emperor Commodus in "The Fall of the Roman Empire" (1964).
Moviestore/Shutterstock
One of Plummer's most beloved roles was as Captain Von Trapp in the 1965 musical "The Sound of Music."
One of Plummer's most beloved roles was as Captain Von Trapp in the 1965 musical "The Sound of Music."
Moviestore/Shutterstock
Plummer and Romy Schneider appear on the set of the 1966 film "Triple Cross."
Plummer and Romy Schneider appear on the set of the 1966 film "Triple Cross."
Sunset Boulevard/Corbis/Getty Images
Plummer joins film stars Rod Taylor, Camilla Sparv and 175 extras in the stands at Wimbledon in 1966. They were shooting the film "Nobody Runs Forever."
Plummer joins film stars Rod Taylor, Camilla Sparv and 175 extras in the stands at Wimbledon in 1966. They were shooting the film "Nobody Runs Forever."
Peter Stone/Mirrorpix/Getty Images
Plummer smokes on a set in 1967.
Plummer smokes on a set in 1967.
AP
Plummer, second from right, and fellow actor Robert Shaw, second from left, talk to pilots about the making of the film "The Battle of Britain" in 1968.
Plummer, second from right, and fellow actor Robert Shaw, second from left, talk to pilots about the making of the film "The Battle of Britain" in 1968.
Ron Case/Hulton Archive/Getty Images
Plummer is seen with his soon-to-be wife, actress Elaine Taylor, in 1970. Plummer was married three times. He had one daughter, Amanda, with his first wife, Tammy Grimes. Amanda Plummer is also an actress.
Plummer is seen with his soon-to-be wife, actress Elaine Taylor, in 1970. Plummer was married three times. He had one daughter, Amanda, with his first wife, Tammy Grimes. Amanda Plummer is also an actress.
Courtesy Everett Collection
From left, Peter Sellers, Plummer and Catherine Schell appear in the 1975 film "The Return of the Pink Panther."
From left, Peter Sellers, Plummer and Catherine Schell appear in the 1975 film "The Return of the Pink Panther."
Michael Ochs Archives/Moviepix/Getty Images
Plummer won an Emmy for his role in the TV miniseries "The Moneychangers" in 1976.
Plummer won an Emmy for his role in the TV miniseries "The Moneychangers" in 1976.
Courtesy Everett Collection/Courtesy Everett Collection
Plummer plays Herod Antipas in the 1977 miniseries "Jesus of Nazareth."
Plummer plays Herod Antipas in the 1977 miniseries "Jesus of Nazareth."
NBC/Getty Images
Plummer plays Sherlock Holmes in "Murder by Decree" (1979).
Plummer plays Sherlock Holmes in "Murder by Decree" (1979).
Avco Embassy/Courtesy Everett Collection
Plummer and Harrison Ford star in 1979's "Hanover Street."
Plummer and Harrison Ford star in 1979's "Hanover Street."
Moviestore/Shutterstock
Plummer plays an archbishop in the 1983 miniseries "The Thorn Birds."
Plummer plays an archbishop in the 1983 miniseries "The Thorn Birds."
ABC Photo Archives/Walt Disney Television/Getty Images
Plummer and Jennifer Jason Leigh appear in a scene from the 1995 film "Dolores Claiborne."
Plummer and Jennifer Jason Leigh appear in a scene from the 1995 film "Dolores Claiborne."
Castle Rock/Moviepix/Getty Images
Plummer won a best actor Tony Award in 1997 for his role in the play "Barrymore." It was his second Tony. He also won for "Cyrano" in 1974.
Plummer won a best actor Tony Award in 1997 for his role in the play "Barrymore." It was his second Tony. He also won for "Cyrano" in 1974.
Mike Segar/Reuters
Plummer appears in the 2002 film "Nicholas Nickleby."
Plummer appears in the 2002 film "Nicholas Nickleby."
Moviestore/Shutterstock
Plummer and Brian Dennehy appear on stage together in the 2007 Broadway production of "Inherit the Wind."
Plummer and Brian Dennehy appear on stage together in the 2007 Broadway production of "Inherit the Wind."
Sara Krulwich/The New York Times/Redux
Plummer stars in "The Imaginarium Of Doctor Parnassus" in 2009.
Plummer stars in "The Imaginarium Of Doctor Parnassus" in 2009.
Parnassus Production/Kobal/Shutterstock
Plummer appears with Ewan McGregor in the 2010 film "Beginners." He won the Academy Award for best supporting actor.
Plummer appears with Ewan McGregor in the 2010 film "Beginners." He won the Academy Award for best supporting actor.
Focus Features/Courtesy Everett Collection
Plummer appears in the theatrical version of "Barrymore" in 2011.
Plummer appears in the theatrical version of "Barrymore" in 2011.
The Movie Network/Courtesy Everett Collection
Plummer has his Oscar engraved in 2012.
Plummer has his Oscar engraved in 2012.
Noel West/The New York Times/Redux
Plummer and his former "Sound of Music" co-star Julie Andrews arrive at a TCM Classic Film Festival in 2015.
Plummer and his former "Sound of Music" co-star Julie Andrews arrive at a TCM Classic Film Festival in 2015.
Rich Fury/Invision/AP
Plummer leaves his handprints at the famous TCL Chinese Theatre in Hollywood in 2015.
Plummer leaves his handprints at the famous TCL Chinese Theatre in Hollywood in 2015.
Alberto E. Rodriguez/WireImage/Getty Images
Plummer plays billionaire J.P. Getty in the 2017 film "All the Money in the World." It earned him an Oscar nomination.
Plummer plays billionaire J.P. Getty in the 2017 film "All the Money in the World." It earned him an Oscar nomination.
Giles Keyte/TriStar Pictures/Courtesy Everett Collection
One of Plummer's last roles was in the 2019 mystery film "Knives Out."
One of Plummer's last roles was in the 2019 mystery film "Knives Out."
Lions Gate/Courtesy Everett Collection