When Mom Becomes a Murderer full cast list: Lauren K. Robek and others star in LMN drama 

When Mom Becomes a Murderer, the much-anticipated crime thriller film premiered on Lifetime Movie Network on Thursday, July 18, 2024. The film has a cast of talented actors like Lauren K. Robek, Matreya Scarrwener, Spencer Borgeson and Emily Giannozio.

The film follows the experiences of a teen girl Ellie, who encounters the shocking murder of her friend Nancy. That leads her to a trial to find the murderer but soon realises that all traces lead her to her mother. While researching about her mother's past, she begins to uncover her dark past and fears if she will be the next victim.

When Mom Becomes a Murderer is directed by Paula Elle, who is known for other films like Just in Time (2024) and Magic in Mistletoe (2023). Declan Dineen, Lucy Foster and Victoria have written the script.

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Who stars in When Mom Becomes a Murderer? Cast list explored

Matreya Scrrwener as Ellie

Matreya Scrrwener plays the role of Ellie, the teenage girl who encounters the mysterious murder of her friend Nancy. She goes on to find the true reason behind her friend's murder but uncovers some dark secrets that might lead her into big danger.

She's known for her appearances in films like Imaginary Man (2017), Ties That Bind (2015) and Once Upon a Time (2011).

Lauren K. Robek as Ellie's Mother

Lauren K. Robek as Ellie's Mother (Image via Lifetime Movie Network)

Luren K. Robek plays the role of Ellie's Mother in the film. She becomes the prime suspect behind the murder of Nancy, as her daughter begins to uncover her past. She hides an old dark secret that could completely change the fate of their family.

Robek is known for her work as an actress, writer and director. She graduated with a BFA degree from York University. Robek has primarily worked in film, theatre and television across the United States and Canada.

Some of her major features include Dead Boy Detectives (2024), Resident Alien (2022-2024), Firefly Lane (2021-2023), Fire Country (2022) and Yellowjackets (2021).

Spencer Borgeson as Simon

Spencer Borgeson as Simon (Image via Lifetime Movie Network)

Spencer Borgeson plays the role of Simon, the journalist looking into the murder of Nancy Meyers. Ellie develops a slight love interest towards him, unaware that he has completely different motives.

Borgeson is an actor who was born in White Rock, British Columbia, Canada. He's mostly known for his appearances in Supernatural (2005-2020), Supergirl (2015) and 2 Hearts (2020).

Emily Giannozio as Nancy Meyers

Emily Giannozio plays the role of Nancy Meyers, the victim behind the mysterious murder. She meets Ellie at the party after which she's mysteriously murdered from the top of a hillside.

Giannozio started working for films at a young age. After having a good experience in the film industry, she started writing scripts and stepped into direction. Being an alumnus of Vancouver School, she has created three short films, Best Served, The Legend of Casimir Ilyas and Steel.

Some of her major features include I Love U (2023), A Million Little Things (2021) and Wonder (2017).

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Others in the When Mom Becomes a Murderer cast

Some additional cast in the film include:

• Beth Fotheringham as Carla
• Mike Bhangu as Police Officer
• Wayne Corbeil as Security Guard

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More about When Mom Becomes a Murderer

The official synopsis for When Mom Becomes a Murderer according to Lifetime reads:

“In the aftermath of her best friend’s murder, an introverted teen discovers her mom has a secret past that involves a similar crime. Desperate to uncover the truth, the teen soon finds herself in over her head and wondering… “Is my mom a murderer?”

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When Mom Becomes a Murderer can be watched on the Lifetime Movie Network. Those who don't have cable access can stream the film on Philo, which offers a free trial with 60+ channels for new subscribers.