This is what we found on Wikipedia regarding the Jason Byrne:

Jason Byrne (born 25 February 1972) is an Irish stand-up comedian.

In August 2008, he made his twelfth Edinburgh Festival Fringe appearance. Byrne previously presented a mid-morning radio show on Phantom FM as well as a comedy chat show The Jason Byrne Show featuring P. J. Gallagher, and a comedy panel show called The Byrne Ultimatum on RTÉ Two. He created and starred in a radio show also called The Jason Byrne Show from 2010 to 2012 on BBC Radio 2. The second series was awarded a Gold Sony Radio Award for Best Comedy.

In 2018, he published The Accidental Adventures of Onion O'Brien, a series of books about a young boy growing up in Ireland who has constant bad luck. The book is based on Byrne's childhood.