Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Charmian Carr (Liesl)
While touring to promote The Sound of Music, Charmian met Jay Brent. They married and had two daughters. She continued acting for a while but ended her career in show business after deciding to stay home and raise her children. In 1991, Charmian and Jay divorced.
Once her daughters grew up, Charmian started an interior design company and wrote two books about her experience playing Liesl: Forever Liesl and Letters to Liesl.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Nicholas Hammond (Friedrich)
After The Sound of Music, Nicholas Hammond landed the starring role in the first TV version of Spider-Man. From there, he acted in several daytime TV and movie roles.
In the mid 1980s, Nicholas visited to Australia and fell in love with the country. He now lives in Sydney, where he spends his time as an actor, screenwriter and director.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Heather Menzies-Urich (Louisa)
Since playing Louisa, Heather Menzies-Urich has starred in big film and stage roles like Hawaii and the Broadway play We Have Always Lived in the Castle. She also guest-starred in a number of television shows in the '70s and '80s, including Logan's Run. In 1973, she tried to shake her squeaky-clean image by posing nude in Playboy magazine.
Heather met her husband, the late actor Robert Urich, while shooting a commercial for Libby's Corned Beef Hash. They went on to raise three children and star in television shows and in plays together. Robert passed away in 2002, and today, Heather dedicates her time to the Robert Urich Foundation for Cancer Research and Patient Care.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Duane Chase (Kurt)
Duane Chase took on small parts after playing Kurt in The Sound of Music, but after graduating from high school, he decided to quit show business. He went on to earn a masters degree in geology and now designs computer software for geologists. He lives in Seattle with his wife, Petra.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Angela Cartwright (Brigitta)
From 1965 to 1968, Angela Cartwright played Penny Robinson in the science-fiction TV hit Lost in Space. After leaving the show, Angela continued acting in television, commercials and feature films. During that time, she married and had two children.
Angela also has become an accomplished writer. Her books include My Book: A Child's First Journal, Mixed Emulsions: Altered Art for Photographic Imagery, In This House: A Collection of Altered Art Imagery and Collage Technique and In This Garden: Explorations in Mixed-Media Narrative. She's passionate about photography, jewelry and clothing design.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Debbie Turner (Marta)
After making her moment in the spotlight, Debbie finished high school and became a professional skier. She met her husband, Rick Larson, at a ski resort and the two married in 1980. They have four daughters.
Debbie also studied interior design, and started her own floral design and event company, Debbie Turner Originals, near her home in Minneapolis, Minnesota.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Kym Karath (Gretl)
Kym Karath played Gretl in The Sound of Music when she was just 6 years old, and decades later, she's still acting! In the '60s and '70s, Kym appeared on television shows like Lassie, My Three Sons, Lost in Space and The Brady Bunch.
After graduating from the University of Southern California, Kym made some TV appearances before moving to Paris to model and study. There, she married Philippe Equibec and had a son, Eric. When she returned to the United States, Kym appeared on the soap opera All My Children before taking time off to raise her son. She's now acting again in Los Angeles and is developing a TV show.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Julie Andrews (Maria von Trapp)
After starring in The Sound of Music, Julie spent the next three decades on stage and screen, bringing many memorable roles to life. By the '90s, however, a lifetime of singing had taken a toll on her vocal chords. In 1997, Julie had throat surgery, which left her famous voice permanently damaged...but her career was far from over.
Julie went on to voice animated characters like the queen of Far, Far Away in the animated Shrek movies and the overbearing mother in Despicable Me.
Julie also expresses herself by writing children's books. She's a best-selling author and publisher of 30 children's books.
Photo: Courtesy of Twentieth Century Fox/Harpo Studios
Christopher Plummer (Georg von Trapp)
Multiple Tony®- and Emmy®-winning actor Christopher Plummer has been called one of the greatest actors of all time. Since co-starring in
The Sound of Music, Christopher has appeared in more than 100 films, including
The Insider,
The Inside Man and the animated movie
Up. In 2009, he earned his first Oscar® nomination for his portrayal of Russian writer Leo Tolstoy in the film
The Last Station.
Christopher wrote candidly about his colorful life in the 2008 memoir
In Spite of Myself.
Read a chapter from the book.
His next big role is Henrik Vanger in
The Girl with the Dragon Tattoo, which will be released in 2011.
More from The Sound of Music
What it was like to film the first scene 
Take The Sound of Music movie quiz!
Go behind the scenes on the movie set
