The beloved star, who passed away on February 26, 2025, at the age of 39, left behind a legacy of memorable performances that defined a generation. From a young age, Trachtenberg captivated audiences with her powerful presence and chameleon-like ability to inhabit a wide range of characters.
Her sudden passing was a shock to fans and colleagues alike, with many, including her former co-stars, sharing heartfelt tributes. In honor of her enduring contributions to film and television, we look back at ten movies and TV shows that showcase her diverse talent, offering a perfect way to remember and honor her work.
Harriet the Spy (1996)

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As the titular character in this beloved children’s movie, Trachtenberg delivered a breakout performance that was both intelligent and deeply charming. Her portrayal of the imaginative, notebook-carrying young spy was relatable and inspired a generation of aspiring detectives.
Buffy the Vampire Slayer (2000-2003)

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Joining the iconic supernatural series in its fifth season, Trachtenberg took on the role of Dawn Summers, Buffy’s younger sister. Her performance was a vital part of the show’s later seasons, providing a grounded, emotional core to the fantastical storyline. She convincingly portrayed the complexities of a teenage girl navigating a world of demons and destiny.
EuroTrip (2004)

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In this raucous comedy, Trachtenberg’s role as the adventurous Jenny was a departure from her more serious parts. She showcased her comedic timing and on-screen charisma, holding her own alongside the film’s energetic cast and becoming a memorable part of the cult classic.
Gossip Girl (2008-2012)

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As the deliciously manipulative Georgina Sparks, Trachtenberg created one of television’s most iconic villains. Her appearances on the hit teen drama were always a highlight, with her character’s dramatic entrances and schemes adding a thrilling dose of chaos. Her ability to play Georgina with a perfect blend of charm and menace solidified her status as a versatile actress.
Ice Princess (2005)

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In this heartwarming family film, Trachtenberg played Casey Carlyle, a brilliant young student who discovers a passion for figure skating. She seamlessly transitioned from a bookish academic to a graceful athlete, capturing the struggles and triumphs of a young woman chasing a dream she never knew she had.
17 Again (2009)

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While her role as Maggie O’Donnell was a supporting one, Trachtenberg brought a great deal of heart and humor to the film. She played the protagonist’s daughter, offering a modern, grounded perspective to the time-traveling comedy and showcasing her ability to add depth to any ensemble cast.
Black Christmas (2006)

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Trachtenberg took on a more chilling role in this horror remake. Her performance as Melissa, a cynical and sardonic sorority sister, provided both comic relief and genuine terror. It demonstrated her range and ability to handle darker, more suspenseful material effectively.
The Adventures of Pete & Pete (1994-1996)

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Before her fame on the big screen, a young Michelle Trachtenberg appeared on this surreal and beloved Nickelodeon show as Nona F. Mecklenberg. She was a key part of the show’s quirky charm, proving her acting chops early on with a role that required both comedic talent and an understanding of the show’s unique tone.
Mysterious Skin (2004)

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In this critically acclaimed drama, Trachtenberg played a supporting role that allowed her to showcase a mature and subtle dramatic talent. The film, which tackles dark and sensitive subject matter, demonstrated her range as a serious actress capable of taking on emotionally complex projects.
Inspector Gadget (1999)

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In this live-action adaptation, Trachtenberg played Penny, the genius niece of the bumbling Inspector Gadget. She brought a quick wit and endearing cleverness to the role, demonstrating her early promise as a young actress capable of holding her own in a big-budget Hollywood production.