The Young Offenders

Alex Murphy and Chris Walley reprised their roles from the film as Conor and Jock respectively, with supporting roles from Hilary Rose as Mairead MacSweeney, Dominic MacHale as Sergeant Tony Healy, P. J. Gallagher as Principal Barry Walsh, Jennifer Barry as Siobhan Walsh, Demi Isaac Oviawe as Linda Walsh, Orla Fitzgerald as Orla Walsh and Shane Casey as Billy Murphy.

Prior to the six-episode first series coming to an end, the programme was recommissioned for a second series, which was broadcast between 3 November and 8 December 2019. A Christmas special was released on 14 December 2018, starring Irish actor Robert Sheehan. A third series was broadcast between July and August 2020.

On 3 March 2023, a fourth series was commissioned by RTÉ and the BBC, with the show moving from BBC Three to BBC One in the United Kingdom. Several months later, RTÉ announced that the release date would be postponed until 2025 as part of €10m worth of RTÉ cost cuts, however the fourth series aired on 10 May 2024 on BBC One & BBC iPlayer.

In an interview, at Cork Person of the Year 2025, Shane Casey confirmed that Series 5 of the show "is going to happen in late May". The fifth series was released on 3 April 2026 on BBC One & BBC iPlayer.