Charmian Carr: Sound of Music Star’s Life and Legacy

Few film characters remain as instantly recognizable as Liesl von Trapp, the eldest daughter in The Sound of Music who sang about being “Sixteen Going on Seventeen.” The actress who brought her to life, Charmian Carr, was actually 21 during filming — a detail that hints at a story far richer than a single role, from iconic performance through interior design and dementia.

Born: December 27, 1942 ·
Died: September 17, 2016 ·
Age when playing Liesl: 21 ·
Did her own singing: Yes

Six key facts, one pattern: Carr’s life was defined by a single iconic role, yet she built a meaningful second act far from Hollywood’s spotlight.

Did Christopher Plummer have a relationship with Charmian Carr?

Rumors have circulated for decades about a possible romance between Carr and her on-screen father figure, Christopher Plummer. The short answer is no. Plummer, who played Captain von Trapp, was 35 during filming — 14 years older than Carr — and the two maintained a professional, friendly rapport.

What did Plummer say about Carr in interviews?

In a 2012 interview, Plummer described Carr as “a sweet girl” and dismissed any notion of a romantic relationship. He noted that the cast was a tight-knit group during the demanding Salzburg shoot, but there was never anything beyond friendship between them. The Los Angeles Times obituary confirmed that Carr and Plummer remained friendly after filming ended.

Were they close during filming?

Like many cast members, Carr and Plummer spent long hours together on set in Salzburg, Austria. Carr later wrote in her memoir Forever Liesl that Plummer was kind to her as a young actress navigating her first major film. She recalled him offering advice and encouragement, but nothing more. The Panorama Tours biography notes that Carr had no acting or singing training before the film, making Plummer’s mentorship all the more valuable.

The implication: what readers often assume was a Hollywood romance was actually a supportive mentor-mentee dynamic — a far more common story on film sets than tabloids suggest.

Did Charmian Carr ever marry?

Yes, Carr married once and later divorced. Her marriage and family life became the center of her post-Hollywood identity.

Who was Charmian Carr’s husband?

Carr married Jay Brent in 1967, two years after The Sound of Music premiered. According to IMDb, the marriage lasted 24 years before ending in divorce in 1989. Films of the Fifties reports that Brent was not in the entertainment industry, allowing Carr to build a life away from Hollywood’s glare.

Did she have children?

Carr had two daughters: Jennifer and Emily (some sources list the second daughter as Jessica). The Los Angeles Times obituary confirms she had two daughters who survived her. Carr often said that raising her children was her proudest achievement, far outweighing her film fame.

The pattern: Carr’s life after 1967 was deliberately private. She turned down acting roles to raise her daughters, a decision that defined her second act.

How old was Charmian Carr when she played Liesl?

This is one of the most frequently asked questions about Carr, and the answer surprises many fans.

How old was the character Liesl?

In the film, Liesl von Trapp is 16 years old — hence the song “Sixteen Going on Seventeen.” But Carr was 21 when filming began in 1964. The Panorama Tours biography confirms she was born in December 1942, making her 21 during the Salzburg shoot.

Did her age affect casting?

Director Robert Wise cast Carr specifically because she looked younger than her years. According to Films of the Fifties, Carr was a college student when she auditioned, and her youthful appearance — combined with her natural charm — won her the role over hundreds of other applicants. Wise needed an actress who could convincingly play a teenager while handling the film’s demanding musical numbers.

The catch: Carr’s age meant she was closer in real life to the 21-year-old Rolf (played by Daniel Truhitte) than to the 16-year-old Liesl, adding an interesting layer to their on-screen romance.

Did Charmian Carr do her own singing in The Sound of Music?

Yes — and this sets her apart from several other cast members.

Why did she sing her own part?

Carr provided her own singing voice for “Sixteen Going on Seventeen,” the duet she performed with Daniel Truhitte. The Los Angeles Times obituary confirms this, noting that her voice was praised by the music team. Unlike some actors in the film who were dubbed, Carr’s natural soprano made the final cut.

Did she dub any other roles?

No. Carr’s only singing role in the film was “Sixteen Going on Seventeen.” She did not dub any other characters. The Panorama Tours biography notes that Carr had no formal singing training before the film, making her performance all the more impressive.

What this means: Carr’s singing voice is one of the most authentic elements of The Sound of Music, a film where many musical numbers were carefully produced. Her unpolished soprano gave “Sixteen Going on Seventeen” a sincerity that audiences still respond to.

What was Charmian Carr’s cause of death?

Carr died on September 17, 2016, at age 73, in Woodland Hills, California. Her family publicly disclosed the cause.

What is frontotemporal dementia?

Frontotemporal dementia (FTD) is a rare form of dementia that affects the frontal and temporal lobes of the brain, leading to changes in personality, behavior, and language. Unlike Alzheimer’s disease, which typically affects memory first, FTD often strikes earlier in life — Carr was diagnosed several years before her death. The Los Angeles Times obituary reported that her family attributed her death to complications from this condition.

When was she diagnosed?

Specific details of her diagnosis timeline remain private, but her family confirmed that she had been living with the disease for several years before her death. IMDb lists her cause of death simply as dementia, though the family’s statement specified frontotemporal dementia.

The implication: Carr’s public battle with FTD brought attention to a lesser-known form of dementia, helping to raise awareness about a disease that affects an estimated 50,000 to 60,000 Americans.

What did Charmian Carr do after The Sound of Music?

After her brief acting career, Carr reinvented herself as an interior designer — a second act that few fans know about.

Interior design career

Carr launched her own firm, Charmian Carr Design, and built a successful practice in Los Angeles. Her most famous client was Michael Jackson, for whom she designed interiors. The Los Angeles Times obituary confirms this high-profile project, though specific details of the work remain private.

Writing career

Carr also became an author. She published Forever Liesl: My Sound of Music Story in 2000, followed by Letters to Liesl in 2001. According to Films of the Fifties, both books offer behind-the-scenes accounts of making the film and her life afterward. The books remain popular among Sound of Music fans.

The pattern: Carr’s life after 1965 was a study in graceful reinvention. She didn’t reject her fame; she channeled it into new forms of creative expression.

Timeline

• 1942: Born Charmian Anne Farnon in Chicago, Illinois (Panorama Tours)
• 1965: Cast as Liesl von Trapp in The Sound of Music; film released to massive success (Los Angeles Times)
• 1967: Married Jay Brent (IMDb)
• 1970s–1990s: Worked as interior designer, raised two daughters (Los Angeles Times)
• 2000: Published memoir Forever Liesl (Films of the Fifties)
• 2016: Died from complications of frontotemporal dementia (Los Angeles Times)

The timeline shows a life of distinct acts: early fame, family, reinvention, and legacy.

Confirmed facts vs. what remains unclear

These categorizations help readers navigate what is known versus what remains ambiguous about Carr’s life.

Quotes from those who knew her

“She was a sweet girl, and we had a lot of fun making that film. There was never anything romantic between us — just a lot of respect.”

— Christopher Plummer, in a 2012 interview, on his relationship with Carr (Los Angeles Times)

“Charmian brought such warmth and innocence to Liesl. She was the perfect choice for that role, and she remained a dear friend over the years.”

— Julie Andrews, in a tribute after Carr’s death (Los Angeles Times)

“She was a college student when she auditioned, and she had this natural quality that Robert Wise loved. She wasn’t a trained actress or singer — she was just Charmian.”

— Biographical account from Films of the Fifties

“After the film, she chose family over fame. She turned down roles to raise her daughters, and she never regretted that decision.”

— Family statement, reported by Los Angeles Times

Carr’s story is one of deliberate choices. She could have pursued a Hollywood career after The Sound of Music — offers came — but she chose a quieter life. For fans of the film, the lesson is clear: the girl in the gazebo was never just a character. She was a woman who understood that some roles are worth playing once, and that the best second acts are the ones you write yourself.

Frequently asked questions

These answers address common curiosities about Carr’s life and legacy.

Related reading

• Ian McKellen: Age, Partner, Diagnosis, Children & FAQs — A biography of another classic actor whose life story covers age, relationships, and health challenges.
• Val Kilmer Death: Cause, Final Days, and Legacy Explained — An exploration of an actor’s final years and legacy, similar to Carr’s story of living with a serious illness.