Britt Lower Says She Formed a Sister-Like Bond with I Will Find You Co-Star Erin Richards During Filming

Britt Lower has revealed that one of the most rewarding experiences of working on Netflix’s thriller I Will Find You was the genuine friendship she developed with co-star Erin Richards. Their connection became so strong during production that it extended far beyond the film set, helping them create a believable on-screen relationship while also building a lasting friendship in real life.

The Emmy-nominated actress recently reflected on her experience making the Harlan Coben adaptation, explaining that she and Richards quickly developed a close bond while portraying sisters in the suspense-filled drama. Their relationship continued to grow throughout filming, eventually leading to family gatherings and holiday celebrations together.

In I Will Find You, Lower stars alongside Sam Worthington and Erin Richards in a story centered on family, loss and an extraordinary search for the truth. The series follows David, played by Worthington, a man who has been imprisoned after being convicted of murdering his young son. Everything changes when new evidence suggests that the child may still be alive, launching an emotional investigation filled with secrets and unexpected twists.

Lower plays Rachel, who is both Cheryl’s younger sister and David’s former sister-in-law. Rachel becomes one of David’s most trusted allies after discovering information that could completely change the case. Together, they begin searching for Matthew, the little boy everyone believed had died years earlier.

Although the series features plenty of mystery and suspense, Lower believes that the emotional relationships between the characters form the true heart of the story. For that reason, establishing an authentic connection with Richards became an important part of preparing for their roles.

Speaking about their friendship, Lower admitted she has never had a sister in real life, making the experience particularly meaningful.

She explained that she has always wondered what it would feel like to have that kind of sibling relationship and immediately sensed a natural connection with Richards. According to Lower, they developed a close understanding almost from the moment they began working together.

As filming continued over several months in Toronto, their friendship grew stronger both on and off the set.

The production lasted approximately five months, giving the cast plenty of opportunities to spend time together outside working hours. During that period, Lower and Richards regularly met away from filming, allowing their relationship to develop naturally.

Their families also became acquainted, creating an atmosphere that felt much more personal than a typical workplace friendship.

One of Lower’s favorite memories came during Easter, when both actresses spent the holiday together with their families. Rather than returning to separate celebrations, they shared the occasion as though they truly were sisters, something Lower described as both heartwarming and memorable.

She joked that for several months they were essentially pretending to be siblings, but the affection and trust they built during that time felt completely genuine.

That closeness ultimately benefited their performances.

According to Lower, Rachel’s relationship with Cheryl serves as one of the emotional foundations of the entire series. While much of the drama focuses on David’s determination to uncover the truth about his missing son, Rachel’s motivations are driven primarily by her devotion to her sister.

She explained that Rachel’s decisions throughout the story stem from deep family loyalty. Protecting Cheryl and supporting those she loves become central aspects of her character, influencing nearly every major choice she makes.

Lower believes that emotional connection gives Rachel purpose beyond simply helping solve the mystery.

Another important relationship explored in the series is the quiet understanding between Rachel and David.

Although they are no longer legally related after David’s marriage ends, Lower explained that the two characters continue to share a bond built on trust and mutual respect.

That connection becomes especially important when Rachel discovers a photograph that could suggest Matthew is still alive.

Instead of immediately showing the picture to Cheryl, Rachel chooses to approach David first.

Lower explained the reasoning behind that decision by pointing to Cheryl’s personal circumstances.

At that stage in the story, Cheryl has recently remarried and is expecting a baby girl. After enduring years of emotional hardship, she has finally begun rebuilding her life and finding happiness again.

Rachel fears that revealing the photograph too quickly could shatter that fragile peace if it ultimately proves to be a false lead.

By taking her concerns to David first, Rachel hopes to confirm her instincts before disrupting her sister’s new beginning.

For Lower, these subtle emotional decisions make the characters feel far more realistic than traditional thriller stereotypes.

The actress also praised bestselling author Harlan Coben for providing an exceptional creative foundation throughout the production.

Having Coben closely involved in the adaptation gave the cast valuable insight into each character’s motivations and emotional history.

Lower described his original novel as an invaluable resource during filming, explaining that the book offered a rich understanding of every relationship, while Coben himself remained generous with his time and ideas throughout the creative process.

Rather than insisting actors follow rigid interpretations, she said the author encouraged collaboration and welcomed discussions about character development.

This freedom allowed the performers to move beyond simply recreating scenes from the novel.

Instead, they focused on bringing each character to life by exploring how they would think, react and interact in real situations.

Lower explained that adapting a novel involves much more than memorizing dialogue. Actors must step inside their characters emotionally and physically, understanding not only what they say but why they behave the way they do.

Working alongside Coben helped make that process feel both creative and collaborative.

She described the experience as enjoyable because everyone involved shared the same goal: transforming well-written literary characters into believable people audiences could genuinely connect with.

The result, according to Lower, was a production that balanced suspense with emotional authenticity.

While viewers may initially be drawn in by the mystery surrounding Matthew’s disappearance, it is ultimately the relationships between parents, siblings and extended family members that give the story its lasting emotional impact.

Lower’s chemistry with Richards plays a significant role in achieving that balance.

Their real-life friendship allowed scenes between Rachel and Cheryl to feel natural, reflecting years of shared memories, trust and unconditional support without requiring excessive explanation.

That authenticity strengthens the emotional stakes throughout the series, reminding viewers that beneath the mystery lies a story about family bonds that survive even the darkest circumstances.

With its combination of psychological suspense, emotional storytelling and compelling performances, I Will Find You continues to attract audiences looking for more than a conventional crime drama.

For Britt Lower, however, one of the greatest rewards of the project had nothing to do with solving fictional mysteries. Instead, it was discovering a meaningful friendship with Erin Richards—a connection that began while playing sisters on screen and evolved into a genuine relationship off camera, making their performances all the more believable.