Gavin’s theatre credits include: Tribes, Hamlet (The Gate / St Ann’s Warehouse); Blood Wedding (Young Vic); Philadelphia, Here I Come! (Abbey Theatre / Lyric Belfast); and Druid Shakespeare and Druid Murphy (Lincoln Centre, Kennedy Centre).

TV credits include: Baby Reindeer, Vikings: Valhalla (Netflix); Daisy Jones and the Six (Amazon Prime), Love/Hate, Rebellion (RTE); The Alienist (Paramount Television); My Mother and Other Strangers (BBC); ‘Barbarians Rising’ (History Channel). He also starred in the first UK Disney+ Original series Wedding Season, for which he was nominated for Outstanding Comedy Actor (National Comedy Awards). He is the lead voice of Male V in Cyberpunk 2077 (CD Projekt Red). Gavin is currently starring in the second season of psychological thriller Surface (Apple TV+).

His film credits include: Sharp Corner, Sweetness in the Belly, Valerian and the City of a Thousand Planets, and What Richard Did.