File:Rob Lowe 2012 Shankbone 2.JPG – Wikimedia Commons

Rob Lowe’s family dog Wayne has passed away at the age of 14.

The actor, known for his roles in The West Wing, The Outsiders and Parks and Recreation, among other films and TV shows, announced this news Thursday night, October 13, via an Instagram post.

“We are heartbroken that our beloved Wayne has passed away,” Lowe captioned the post. “He was a curious, adventurous boy who loved playing chase, stealing snacks, and swimming.”

This news was previously reported by The Sun.