An 80s heartthrob who worked with a string of A-list stars looked unrecognizable during a rare outing in Los Angeles on Sunday.

This past weekend, the 59-year-old was seen spending time with his lookalike teenage son, Gus, which included a visit to a beach in Santa Monica.

Instead of his signature curly, brown mop, the actor is now rocking a graying beard, a shorter haircut and glasses. 

He comes from a lineage of famous actors but changed his stage name to avoid nepo baby accusations. 

He first gained fame in 1987 after playing a role in the popular teen vampire thriller, The Lost Boys, alongside Corey Haim and Kiefer Sutherland.

The movie launched him into heartthrob status, leading to roles in prominent films such as the 1996 drama Sleepers and the 2002 police thriller Narc.

As for his once-turbulent private life, he was caught up in a notorious love triangle involving Julia Roberts – leading to a bitter feud with his equally famous best friend. 

Can you guess who he is? 

An 80s heartthrob who worked with a string of A-list stars looked unrecognizable during a rare outing in Los Angeles on Sunday 

The silver screen star himself — who was once more commonly recognized by his curly, brown mop — rocked a graying beard and a short haircut during his weekend outing

He’s Jason Patric!

Now age 59, he has continued acting and adding to his impressive filmography but remains famously known for his breakthrough roles in the 80s.

The actor was born Jason Patric Miller into a family of famous actors with the talent and passion already in his genes. 

His late father Jason Miller was an accomplished playwright and actor, best known for his Pulitzer Prize and Tony-winning play That Championship Season as well as playing the priest in The Exorcist.

Patric’s mother Linda Miller (née Gleason) is also a Tony-nominated actor. 

His maternal grandfather was the legendary actor Jackie Gleason of The Honeymooners fame.

His brother Joshua Miller is also a famous actor and screenwriter. 

When he was starting his career, however, Patric dropped his last name from his stage moniker because he intended to do it his own way. 

‘I want to make my ascent or demise as pure as possible,’ he previously told Rolling Stone in 1990.

Nowadays, he has continued acting but also juggles fatherhood as he raises his teenage son Gus as a single dad. 

He was joined by his lookalike son, Gus

The unrecognizable star is Jason Patric; seen in 2985

Nearly four decades ago, Patric famously had starred in the teen vampire thriller comedy The Lost Boys; Patric seen in the 1987 film with his on-screen brother Corey Haim

Patric and his teen son reportedly went to church in Santa Monica on Sunday and then stopped by the beach for an early morning swim

During their outing, the pair seemingly coordinated their Sunday best as the father-son duo wore matching, short-sleeved polo shirts paired with blue joggers

Patric sported a pair of tinted, transition glasses and with his goatee going white, the movie star, though still dapper, looked much different after transitioning into another era of his life

He was joined by his 15-year-old son Gus as they reportedly went to church in Santa Monica and then stopped by the beach for an early morning swim.

During their outing, the pair seemingly coordinated their Sunday best as the father-son duo wore matching, short-sleeved polo shirts paired with blue joggers.

Patric sported a pair of tinted, transition glasses and with his goatee going white, the movie star, though still dapper, looked much different after transitioning into another era of his life.

The actor previously made headlines back in 2013 and 2014 due to a contentious IVF custody battle with his ex-girlfriend Danielle Schreiber.

He eventually won full custody of Gus, who was only four years old at the time. 

Most recently, Patric made a three-episode guest appearance in Law & Order: Organized Crime’s fifth season as a detective with the Narcotics Division and an old partner of Detective Elliot Stabler (Christopher Meloni). 

As for some of his most famous roles, Patric famously starred in The Lost Boys alongside Haim as well as Cory Feldman, Jamie Hertz and Kiefer Sutherland in the 80s. 

He is also known for his famous roles in Rush (1991), Geronimo: An American Legend (1993) and Sleepers (1996). 

Patric seen in The Lost Boys (1987)

He is also known for his famous roles in Rush (1991), Geronimo: An American Legend (1993) and Sleepers (1996); pictured in 1985 Toughlove movie still

He is also known for his famous roles in Rush (1991), Geronimo: An American Legend (1993) and Sleepers (1996) and many more; pictured in 1997 Speed 2: Cruise Control press junket 

He famously played the male lead in Speed 2: Cruise Control alongside Sandra Bullock; pictured at Speed 2: Cruise Control premiere in 1997

He starred in Your Friends & Neighbors, The Losers and The Alamo; pictured in 2010 The Losers movie still

He starred in Your Friends & Neighbors, The Losers and The Alamo. 

And he famously played the male lead in Speed 2: Cruise Control alongside Sandra Bullock, which flopped at the box office in 1997. 

At one point in his life, he was also caught up in a famous love triangle in 1991 over Julia Roberts and feuded with Sutherland, his close friend and co-star in The Lost Boys, before they eventually reconciled. 

Back then, Roberts had infamously flown to Ireland with Patric on the same day she was set to wed Sutherland. 

In 2011, they reunited for a Broadway revival of Patric’s late father Jason Miller’s Pulitzer Prize and Tony-winning play That Championship Season. 

‘When I saw him again…there were a few words and more of a laugh and a toast,’ Patric once recalled. 

‘I’ve said before that [he and Julia] have both been subsequently married since a couple times and I think they’re both very happy in their lives. What lasted after all that is me and Kiefer as 35-year buddies.’