On stage, he starred in the 2019 productions of Shakespeare's Much Ado About Nothing with the Rough Magic Theatre Company and The Anvil in Manchester, England.
[7] He then landed a recurring role as Connell's school friend Kiernan in the miniseries Normal People, an adaptation of the novel of the same name by Sally Rooney.
The following year, Liberty joined the main cast of the Viaplay spy thriller Red Election as Marcus and made a guest appearance in the RTÉ One series Smother.
In 2022, he starred as Linus Dunne alongside Conleth Hill in the ITV adaptation of Graham Norton's debut novel Holding[8] and appeared in the Sky Cinema film This Christmas.
[9][10] In April 2023, it was rumoured Liberty had joined the cast of the HBO fantasy series House of the Dragon for its second season in an undisclosed role, later confirmed to be Addam of Hull.