Alex Lawther made an appearance in the third season of Black Mirror.
This image appears in the gallery:
Alex Lawther: 12 Facts You (Probably) Didn’t Know About The Rising Star

10. Alex Lawther made an appearance in the third season of Black Mirror.
In the episode 'Shut Up and Dance', Alex plays a teenage boy who is blackmailed into committing bizarre and criminal acts by a mysterious hacker possessing a video of him masturbating, which sounds about right for a Black Mirror plotline.