Donnagh Mayock is an actor, musician and theatre maker from Co. Kildare. Before training at The Gaiety School of Acting (Class of 2023), Donnagh completed a music degree at Maynooth University (Class of 2020). Donnagh is a multi-instrumentalist with a keen interest in classical, jazz and traditional Irish music. He was credited as Assistant Musical Director/Sound Designer for GSA’s Hubnub!, in which he also starred.

In May 2023, Donnagh performed Sex on the Beach, his first one-act play, co-written with Maria Cunningham, at Smock Alley Theatre.