Mandy Moore Announces Death of 'Beautiful' Dog: 'We Love You Forever'

Moore wrote that her beloved dog, Jackson, had died after nearly 15 years with her and her family

Amy Sussman/Getty; Mandy Moore/Instagram Mandy Moore and late dog Jackson.

Amy Sussman/Getty; Mandy Moore/Instagram

Mandy Moore and late dog Jackson.

Mandy Moore is mourning the loss of her beloved dog Jackson.

On Friday, Nov. 1, the This Is Us actress, 40, shared in an Instagram post that her "beautiful boy" Jackson had died, after being with her family for over 14 years.

"My beautiful boy. Thank you for an extraordinary 14+ years," Moore wrote in the caption of the post, alongside photos of the sandy brown canine relaxing on the couch, spending time with her three kids.

Mandy Moore/Instagram Mandy Moore's dog Jackson.

Mandy Moore/Instagram

Mandy Moore's dog Jackson.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

"You were an excellent protector (even if we told you it wasn’t necessary), you weren’t big on other animals or the kids but you loved in your own way and knew how loved you were by all of us," she continued. "You had a big bark that seemed to scared some folks but you were actually the most gentle guy who was secretly scared of his own shadow."

Mandy Moore/Instagram Mandy Moore's dog with her son.

Mandy Moore/Instagram

Mandy Moore's dog with her son.

Also included in the photos was a selfie of the actress and her pup as they cuddled on the couch, and Jackson playing with Moore's cat Fig and her other dogs over the years.

"My Jackie D. My sweet old man," Moore finished the post, before referring to another one of her late pets, Joni. "I hope you find Joni and have a giant pool to chase tennis balls and swim until your heart’s content. We love you forever. Thanks for choosing us. ❤️‍🩹❤️‍🩹❤️‍🩹❤️‍🩹❤️‍🩹."

Mandy Moore/Instagram A selfie of Moore and her canine.

Mandy Moore/Instagram

A selfie of Moore and her canine.

Back in 2021, the star also shared an update about the dog's health, revealing that he had undergone emergency surgery for a six-pound mass in his abdomen.

"We are remaining positive and hopeful," she added, noting how the experience was heightened as she was pregnant at the time. "To say I'm beside myself about my sweet boy of 10 years is a bit of an understatement."

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories. 

Related: Kerry Kennedy 'Heartbroken' After Dog Dies in 'Terrifying and Violent' Attack Hours After Mom Ethel's Death

Moore has always been candid about her love for her pets, and has previously spoken out after the death of another one of her dogs, Joni. After the small white pup died in 2021, the Tangled star shared on social media that her husband, Taylor Goldsmith, had bought her a toy dog from Cuddle Clones that is a near-perfect replica of her late canine.

In her caption, Moore said that Goldsmith bought her the stuffed animal for the holidays and that she intends to keep it so that their kids "will still know" Joni, who died unexpectedly.

"This was by far my fav gift over the holidays- something that @taylordawesgoldsmith had made. It's a little stuffed animal version of my beloved Joni so that our son will still know her, even though they never got to meet," Moore wrote at the time.