Kieran started his career in the industry acting in STV's Rebus in 2005. Since then he has went on to work with Actor/Director Charles Martin Smith: 'American Graffiti (1973)''The Untouchables (1987)' as well as Director John Landis: 'An American Werewolf in London (1981)''The Blues Brothers (1980)'. 

 'The Inescapable Arrival of Lazlo Petushk' gaind a Best Short BAFTA win (2017) with Kieran as the titular role and he portrayed Ernie Buchan in STARZ/Sony's OUTLANDER series. Behind the camera he has worked on multiple adverts and notably on Samuel L Jackson's 'Damaged (2024)'. 

He has produced and directed films for charities 'We Are With You' and 'PTSD999' and maintains his contacts that he has cultivated over his 20 year career in the industry.