Aran Murphy caught fans’ attention at the London premiere of HBO’s Youth. Along with his acting career, the 19-year-old has gone viral for looking remarkably similar to his famous father, Cillian Murphy.
Aran Murphy Sparks Lookalike Reactions
Cillian Murphy’s son Aran Murphy is quickly becoming a talking point online.
The 19-year-old actor attended the London premiere of Youth on Friday. Soon after, photos from the red carpet spread across social media.
Fans immediately noticed how closely Aran resembles his father. Many joked that he looks almost identical to Cillian, with some saying a DNA test would not be necessary.
Fans Notice More Than His Looks
The similarities do not stop at Aran’s appearance.
Viewers also noticed similarities between the young actor and his father during a promotional interview for Youth shared on Instagram.
Fans pointed out that Aran’s way of speaking, phrasing and mannerisms reminded them of Cillian. As a result, the comparison quickly gained even more attention online.
Aran Murphy Is Building His Acting Career

Aran has shown an interest in acting from a young age.
He appeared in a stage production of Hamnet when he was just 11. Later, he made his film debut in the 2022 movie Lola.
Since then, Aran has continued to take on new projects. He joined the cast of Klara and the Sun, Taika Waititi’s adaptation of Kazuo Ishiguro’s novel, alongside Amy Adams and Jenna Ortega.
He also appeared in HBO and Sky’s WAR last year. Now, his role in Youth gives him another chance to establish himself as an actor.
Cillian Murphy Has Kept His Sons Out of the Spotlight
Cillian Murphy, 50, shares Aran and his older son Malachy, 20, with his wife, Yvonne McGuinness.
The family has largely kept the two brothers away from the Hollywood spotlight. Cillian and Yvonne wanted their sons to grow up with more privacy.
Both boys were born in London. However, the family moved to Dublin in 2015 so Cillian could reconnect with his Irish roots.
Aran Murphy Steps Into the Spotlight
While Aran is now gaining attention because of his famous father, his growing list of acting credits shows that he is building a career of his own.
For now, fans cannot stop talking about his resemblance to Cillian Murphy. However, his role in Youth could help audiences see Aran for more than just his famous family connection.