His good looks have often been attributed to his mother Reese Witherspoon.
But Deacon Phillippe was also a dead ringer for his father Ryan Phillippe when the two were spotted out on run together in Los Angeles on Monday.
The 18-year-old aspiring musician looked eerily like a young version of the 47-year-old actor as they worked up a sweat together.
Lookalikes: Deacon Phillipe (R) and his father Ryan Phillippe (L) were the spitting images of each other when they were spotted out on a run in Los Angeles on Monday
Both Ryan and Deacon were dressed in athletic clothes for their workout in a residential neighborhood.
The Cruel Intentions star wore a black tank top that showed off his intricate tattoos on his left arm, along with gray shorts and black trainers.
He kept the sun out of his eyes with a black cap and sunglasses.
Deacon contrasted his father with a white T-shirt and black shorts, and he wore a black graphic baseball cap.
Simple style: Ryan looked casual and sporty in a black tank top with gray shorts and black trainers, while his son wore a white T-shirt and black shorts
In September of last year, Ryan responded to fans who think his son is his lookalike, revealing that he didn't share their belief.
'Obviously, there is a father–son resemblance,' he told E! News, 'but he actually looks a lot more like Reese's side of the family. Ava looks more like mine.'
That opinion might comes as a shock to some of his and Reese's fans, as they regularly comment on how much alike Ava and her mother are when the pose together in social media photos.
But Ryan added that the two were in agreement on which child most resembled each of them.
'Quite often, the interpretation in the media is that she looks exactly like her mom and he looks exactly like me, but I think we both feel differently about it,' he continued.
He wasn't afraid to embarrass Deacon when he joked that his won was 'way better looking than I am.'
Weighing in: 'Obviously, there is a father–son resemblance,' Ryan admitted to E! News in
