He appears as Fjall the warrior in the 2022 Netflix miniseries The Witcher: Blood Origin (2022), and starred as JP in Guy Richie's The Gentlemen (2024).

Laurence O'Fuarain studied advertising and marketing at the Institute of Technology, Tallaght when by chance, got involved in the making of some short films of which he enjoyed.

[1] In 2014, O'Fuarain graduated from the Programme of Screen Acting at Bow Street Academy in Dublin and was in the same group of alumni as Niamh Algar.

[1][5] In 2018, O'Fuarain secured the part of Vern in the film Viking Destiny opposite Terrance Stamp and Will Mellor, as Kevin Gunn in Don't Go and in Black '47.

[8] In 2024, he starred as JP Ward, head of a travelling community, in the Netflix Guy Ritchie television series The Gentlemen, alongside Theo James, Kaya Scodelario, and Daniel Ings.