Amanda Seyfried Gets a Terrifying — and Hilarious — Surprise From Daughter Nina in Prank-Filled Instagram Video

Amanda Seyfried is proving that even in the midst of major life changes, motherhood keeps her on her toes — sometimes literally. The 40-year-old actress, who has been navigating life as a single mom following her separation from estranged husband Thomas Sadoski, shared a delightfully scary moment with her fans on Tuesday, October 6. What began as a serene musical moment quickly turned into a scene straight out of a horror movie, and her followers couldn’t get enough of it.

Seyfried took to Instagram to post a video that captured a peaceful, almost idyllic moment at home. The Mamma Mia! star was seated comfortably, strumming a dulcimer while singing a heartfelt cover of Joni Mitchell’s classic song “A Case of You.” The soft, folk-inspired setup suggested a quiet afternoon of creative expression — but the tranquility was about to be shattered in the most unexpected and entertaining way.

In the clip, Seyfried’s 9-year-old daughter, Nina, can be seen silently creeping up behind her mother. What made the scene especially cinematic was the fact that Nina was wearing a Ghostface mask, the iconic white, ghostly mask made famous by the beloved Scream franchise. The young prankster moved slowly and carefully, inching closer and closer to her unsuspecting mom, clearly delighted by her own stealthy approach.

The moment of impact came when Seyfried caught a glimpse of her daughter’s eerie reflection in the camera. Her reaction was immediate, instinctive, and genuinely dramatic: she gasped, screamed, and instinctively leaned back from the camera in surprise. Nina, meanwhile, stood behind her mother, absolutely delighted by the successful scare, laughing with the kind of joyful mischief that only a child can pull off.

The video quickly captured the hearts of fans, and the comments section flooded with laughter and empathy. Many followers found the prank absolutely hilarious, with one writing, “Not at any moment did I predict where this was going to go,” while another admitted, “Omg Amanda !! lol I would have peed myself 🤣.” A third comment read, “HA!!! She got you!!! Your daughter was so happy!!! 😱👻.” The general consensus among her followers was clear: Nina is officially the reigning prank queen of the Seyfried household.

But the playful video also offered a glimpse into the actress’s life at a significant personal moment. Seyfried is the mother of two children: Nina, 9, and son Thomas Jr., 5, whom she shares with Sadoski. In September, the former couple made headlines when they released a joint statement announcing their split after nine years together. The announcement, shared through People, was remarkably amicable and reflective, offering a window into their thoughtful approach to family life.

“We have been separated for a while, and it’s proven to be the right move for us and our family unit,” they told the publication. “We’ve got each other forever — and it’s good.”

The statement was widely praised for its mature and compassionate tone, especially given the couple’s history of keeping their personal lives relatively private. Seyfried and Sadoski have long been known for their grounded approach to fame, and their decision to address their split with honesty and warmth seemed in keeping with the way they’ve handled their relationship over the years.

Seyfried and Sadoski first crossed paths in 2015, when they were cast as a couple in the Off-Broadway play The Way We Get By. It was a fascinating time in both of their lives. At the time, Seyfried was dating actor Justin Long, while Sadoski was still married to Kimberly Hope, whom he divorced later that year. Their connection on stage was undeniable, and their working relationship would eventually blossom into something far more personal.

In a 2018 interview with PorterEdit, Seyfried opened up about the early days of her connection with Sadoski, specifically what made him stand out as someone she could eventually trust and love. “He never flirted, never disrespected his wife,” she said. “That was another reason why I thought, later on, that I could marry him.” It was a candid admission that revealed the deep respect she had for him from the very beginning, long before they ever became romantic partners.

Their professional reunion came in 2017, when they appeared together in the film The Last Word. Seyfried described the experience as nothing short of amazing, reflecting on the emotional freedom of being able to work alongside someone with whom she shared such a deep and evolving bond. “It felt healthy and freeing and clean,” she said at the time. “We can tell the story without any guilt.” Those words would prove to be a powerful indication of where their relationship was headed.

The couple’s love story moved quickly after that. Just six months into their relationship, Us Weekly broke the news that Sadoski had gotten down on one knee and proposed to Seyfried. The engagement was kept largely under wraps, and the pair took things a step further by tying the knot in secret in March 2017. At the time, Seyfried was pregnant with their first child, and the couple welcomed Nina just two weeks after their private wedding ceremony. It was a whirlwind beginning for their family, but one that felt deeply personal and authentic to them.

Their family expanded again in 2022 with the birth of their son, Thomas Jr. The arrival of their second child brought even more joy to their lives, and the couple made the decision to trade the chaos of Hollywood for a quieter, more pastoral existence. Seyfried and Sadoski eventually moved their family to a farm in upstate New York, where they could raise their children surrounded by nature, animals, and a slower pace of life. Seyfried has often spoken fondly about the beauty of their rural lifestyle, even as she has continued to travel to Los Angeles for work commitments.

Despite the end of their marriage, Seyfried and Sadoski have remained committed to co-parenting their children with love and mutual respect. Their joint statement emphasized their enduring bond and shared dedication to their family unit, and the latest video of Seyfried and Nina suggests that the home they’ve built together — even if no longer as a married couple — remains full of joy, laughter, and connection.

The prank video also serves as a delightful reminder of Seyfried’s personality beyond her film and television roles. The actress, who first captured audiences’ hearts in films like Mean Girls and Mamma Mia!, has grown into one of Hollywood’s most versatile and respected performers. She earned widespread critical acclaim — and an Emmy win — for her portrayal of Elizabeth Holmes in the Hulu limited series The Dropout, a role that showcased her remarkable range and depth as an actress.

Throughout her career, Seyfried has balanced her professional achievements with a fiercely protective approach to her personal life. She has rarely shared extensive glimpses of her children on social media, which made the playful video with Nina all the more special for her fans. It offered a rare, authentic snapshot of the dynamic between mother and daughter, and it was clear that their bond is filled with warmth, humor, and a healthy appreciation for mischief.

The video also highlighted the musical side of Seyfried’s life, something she has explored throughout her career. From her singing role in Mamma Mia! to her performances in Les Misérables, she has proven time and time again that her talents extend far beyond acting. Her choice to cover Joni Mitchell’s “A Case of You” — a deeply emotional and poetic song — added an extra layer of beauty to the video, making the sudden scare from Nina all the more jarring and entertaining.

As Seyfried continues to navigate her new normal as a single mother, it’s clear that she is embracing the journey with grace, humor, and an open heart. The prank video is just one example of how she is finding joy in the little moments, even as she balances the demands of work, motherhood, and the complicated emotions that come with the end of a long relationship.

For fans, the video was a heartwarming reminder that celebrities, no matter how famous, are just like everyone else when it comes to family. A child wearing a horror movie mask and sneaking up on her mom is a universal experience — one that many parents can relate to, even if they weren’t unlucky enough to have it captured on camera. Seyfried’s reaction, with her gasp and instinctive scream, made the moment even more endearing.

Nina, meanwhile, has firmly established herself as a rising star in the world of childhood pranks. Her performance was flawless, from her silent approach to her perfect timing, and her laughter afterward was the kind of pure, unguarded joy that only a child can express. It’s safe to say that Seyfried will think twice next time she’s filming herself singing her favorite Joni Mitchell songs — and that Ghostface masks may need to be banned from the house, at least for a little while.

The overwhelming response from fans and followers shows just how much Seyfried’s genuine, down-to-earth personality resonates with people. In a world of carefully curated celebrity images, her willingness to share a raw, funny, and slightly embarrassing moment was a breath of fresh air. It also served as a reminder that even during times of transition and change, there is always room for laughter.

As the actress moves forward into this new chapter of her life, one thing is certain: the bond she shares with her children remains her top priority. The prank video was more than just a funny moment — it was a testament to the joyful, loving home she has created for Nina and Thomas Jr., a home where laughter echoes through the halls and even a scary mask can become a cherished memory.

In the end, Amanda Seyfried didn’t just get scared by her daughter. She reminded all of us that sometimes the best moments in life are the ones that catch us completely off guard — and that a little bit of childhood mischief can make even the hardest days feel a whole lot brighter.