Dempsey, 59, shared a rare photo of his twin sons Darby and Sullivan, who recently celebrated their 18th birthdays and graduated from high school.

Patrick Dempsey and his wife, Jillian Dempsey, celebrated their twin sons Darby and Sullivan's high school graduation May 30. See photos from their big day!

Patrick Dempsey posts rare photo of twin sons at graduation: ‘So proud of you boys' Dempsey attended the ceremony with his wife, Jillian Dempsey, and their daughter Talula.

Patrick Dempsey will play a hitman in the new Fox series "Memory of a Killer," the network announced on Monday.

Patrick Dempsey to Topline ‘Memory of a Killer’ Drama at Fox The show will mark the former ‘Grey’s Anatomy’ star’s return to network TV.

Former 'Grey's Anatomy' star Patrick Dempsey is returning to broadcast TV as the lead of 'Memory of a Killer,' Fox's straight-to-series thriller.

Patrick Dempsey named official face of TAG Heuer Eyewear, showcasing sleek designs inspired by motorsport and luxury craftsmanship.

Patrick "McDreamy" Dempsey credits his acting career for helping him prepare for his return to racing. Fans can follow that journey in a new documentary.

Related: Patrick Dempsey's 3 Kids: All About Talula, Darby and Sullivan In 2023, Dempsey told PEOPLE that racing has been "a really important part" os his life.