She is the creator, writer, executive producer, and star of the E4 sitcom Drifters, and appeared as Lisa in The Inbetweeners Movie.
She attended Woodhouse Grove School in nearby Apperley Bridge before studying Drama and English at the University of Manchester.
Knappett was the creator, writer, executive producer, and star of the E4 sitcom Drifters, in which she played Meg.
She has recorded a string of pilot episodes, including Everything Happens for No Reason written by Richard Herring, alongside Noel Fielding.
[10] She was a contestant on the seventh season of Dave's comedy gameshow Taskmaster, falling off the stage during a task in one episode.