On television, he has appeared as a series regular on the CBBC teen fantasy Wolfblood (2012–2014) and the Netflix comedy-drama Sex Education (2019–2023).

His mother encouraged him to audition for Sylvia Young Theatre School when he was in Year 6.

He also trained at Barbara Speake Stage School and later the Italia Conti Academy of Theatre Arts.

In May 2018, it was announced that Williams-Stirling would star alongside Gillian Anderson and Asa Butterfield in the Netflix original comedy-drama series Sex Education.

[6] This biographical article related to English television people is a stub.