About Jimmi Simpson
Jimmi Simpson (born November 21, 1975) is an American actor. Known for his work across film, television, and theatre, he is the recipient of BAFTA, Primetime Emmy, and Screen Actors Guild Award nominations. Simpson made his feature film debut in Loser (2000). Subsequent credits include Herbie: Fully Loaded (2005), Zodiac (2007), Date Night (2010), Abraham Lincoln: Vampire Hunter (2012), White House Down (2013), Under the Silver Lake (2018), and Unhinged (2020). On television, Simpson played the recurring role of Liam McPoyle on It's Always Sunny in Philadelphia (2005–2023), and has since had roles in series such as Psych (2009–2013), Breakout Kings (2011–2013), The Newsroom (2014), House of Cards (2014–2015), Hap and Leonard (2016), Westworld (2016–2020), Black Mirror (2017, 2025), Unsolved (2018), Perpetual Grace, LTD (2019), The Man Who Fell to Earth (2022), Pachinko (2022), and Dark Matter (2024). On stage, his portrayal of Philo Farnsworth in The Farnsworth Invention (Broadway, 2007–2008) earned him a Theatre World Award.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.