He is possibly best known for co-writing and playing the leading role of Tom Collins in the film A Practical Guide to a Spectacular Suicide.
[1] Born in Kirkintilloch in Scotland, McGeagh formed a close film partnership with childhood friends Graham Hughes and Keith Grantham.
The feature-length comedy film, which also starred the trio in acting roles, tells the story of six young guys whose efforts to spend a quiet night in, quickly spiral out of control.
[2] The film was an overwhelming success and earned McGeagh, Hughes and Grantham a nomination for best achievement in writing at the 2011 British Academy Scotland New Talent Awards.
[8][9] A Practical Guide to a Spectacular Suicide earned McGeagh a 2nd Bafta nomination at the 2014 British Academy Scotland New Talent Awards for Best Acting Performance.