Aaron McCusker is an Irish actor. He debuted in the 2002 TV film Murder. He next had one-time roles on the TV shows Ultimate Force, The Rotters’ Club, and The Bill. Meanwhile, he had his first film appearance in 2003’s The Ticking Man. He later became widely known for starring as Jamie Maguire on the British comedy-drama series Shameless. Afterward, he played A.J. Yates in two episodes of the Showtime series Dexter. He also appeared in two episodes of Silent Witness. In 2015, he played Jason Donnelly on the British show Fortitude and Wally Schirra on Hollywood series The Astronaut Wives Club. In 2018, he portrayed Jim Hutton in the film Bohemian Rhapsody.