Mark Folan Deasy appeared on Coronation Street in four roles:
- A mechanic who worked at Premium Motors in August 2008
- An environmental health officer, called to check on Nick's Bistro after Beth Sutherland presented with a mysterious rash following a meal at the establishment in February 2016
- Mr Banks, whose wife enlisted the help of Barlow Legal Services to obtain proof that he was having an affair in August 2017
- Jay, an old acquaintance of Laura Neelan's who handed her daughter Kelly a holdall of Laura's belongings in September 2022 (although the actor was credited as "Mark Folan" for this role).
Besides working on several TV commercials, his on-screen credits include roles in Jason and the Argonauts, Doctors, Hollyoaks, The Bill, Silent Witness, Emmerdale, Heartbeat and Scott & Bailey.