Marta Kessler Biography: Films, Boyfriend, Height, Ethnicity, Age, Net Worth, Siblings, Parents

Marta Andreevna Timofeeva, better known as Marta Kessler, is a Russian teen actress who first gained widespread attention for her portrayal of Constance Contraire in Disney+’s adaptation of The Mysterious Benedict Society.

Landing that role at age eleven after an extensive early career in Russian film, such as Cosmoball and I Am Dragon, she became one of the youngest Russian regulars in a major U.S. series.

Profile

• Full name: Marta Andreevna Timofeeva
• Stage name: Marta Kessler
• Date of birth: August 8, 2009
• Age: 15 years old
• Gender: Female
• Place of birth: Moscow, Russia
• Nationality: Russian
• Profession: Actress, model
• Height: 4′ 2″ (1.27 m)
• Weight: 23 kg (100 lb)
• Eye color: Blue
• Hair color: Light brown
• Parents: Mother Anna Rebetskaya (former Bolshoi Ballet soloist, now manager); Father Andrei Timofeev (military orchestra musician)  
• Siblings: Alexey Timofeev and Robert Timofeev (brothers)  
• Spouse: None
• Children: None
• Relationship status: Single
• Religion: N/A
• Ethnicity: White (Slavic/Eastern European)
• Net worth: Approx. $270,000–300,000

Early Life and Education

Marta Kessler is now 15 years old. She was born on August 8, 2009, in Moscow, Russia, to Anna Rebetskaya and Andrei Timofeev, both artistic professionals. Anna performed as a Bolshoi Ballet soloist and later redirected her skills toward managing Marta’s career, while Andrei is a musician in a military orchestra.

Marta grew up alongside her two younger brothers, Alexey and Robert, in an environment combining performance arts and disciplined creative work. She attended a local private school in Moscow, where she picked up French as her favorite subject and balanced schooling with an acting career that began at just four months old in a baby food commercial.  

Personal Life

Marta is currently single and has not been involved in any romantic relationship before. Her parents continue to play integral roles in her life—Anna doubles as her manager while Andrei supports her artistic pursuits. She maintains a healthy balance of a typical family life with pet cats (including her beloved Mira, who was gifted on set), school, and acting.

Career

Marta began modeling and acting in commercials when she was still a baby, with her first professional spots at four months old and a short film, Pumpkin, at age three, winning international awards early on.

Her early career in Russia includes roles in Union of Salvation, Gogol, The Blood Lady, Cosmoball, and Welcome to Mercy. In 2021, she was cast as Constance Contraire in Disney+’s The Mysterious Benedict Society, making history as the first Russian child actor to land a U.S. series regular role.

Additional screen credits include My Horrible Sister, Row 19, The Last Warrior: Root of Evil, Abigail, and Survive. Beyond film and television, she also performs on stage with the Bolshoi Theatre’s ensemble in the musical Animal Carnival.  

Net worth

Marta Kessler’s estimated net worth is around $270,000, rising to approximately $300,000 by mid‑2025. Her earnings come from acting roles in Russian and international film and TV, modeling, and live performances.  

Social Media

• Instagram: @miss.kessler
• X: N/A

Filmography

• 2015: I Am Dragon as a young girl (Doch Miry i Armana)
• 2017: Spacewalk as Vika Leonova
• 2017: Furious as Zhdana
• 2017: The Optimists (TV) as Anna Biryukova
• 2018: Gogol. Viy (TV) as Vasilina
• 2018: The Blood Lady as young Darya
• 2019: Union of Salvation as Varya, Rileev’s daughter
• 2019: Abigail as Young Abigail
• 2019: Sestrenka as Oksana
• Andrei Timofeev