Aran Murphy, the 19-year-old son of acclaimed actor Cillian Murphy, is stepping into the spotlight with a role in the new HBO series "Youth." The rising actor will portray Ruairi, a troubled teenager navigating social media trends, marking a significant step in his burgeoning acting career.
Murphy made a public appearance at a screening of the series in London alongside his co-stars, including Sharon Horgan. Social media users quickly noted his striking resemblance to his father, with many commenting on the uncanny similarity. "Literally copy and paste Cillian to a T!!!" one user observed, while another remarked, "He is more Cillian than Cillian himself."
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This role follows a series of previous acting credits for Aran Murphy. Earlier in 2026, he appeared in Taika Waititi's science fiction adaptation "Klara and the Sun," starring alongside Jenna Ortega and Amy Adams. The previous year, he joined the cast of "WAR," an HBO and Sky co-production featuring Dominic West and Sienna Miller. His feature film debut was in the 2022 independent sci-fi mystery "Lola."
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The Murphy family has maintained a connection to the entertainment world beyond Cillian's career. Last year, during an appearance on "The Graham Norton Show," Taylor Swift recounted meeting Aran and his older brother, Malachy, at an Oscars party. Swift noted their conversational skills, calling them "the future of our world."
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Cillian Murphy and his family relocated back to Dublin in 2015 after residing in London for 14 years. The actor mentioned in a podcast that the move was partly to ensure his sons maintained Irish accents, humorously noting they had developed "very posh English accents."