[3][4] Thomas was cast as Alisha Daniels in Misfits in 2009,[5] one day after leaving Bristol Old Vic Theatre School.

[6] She confirmed her exit from Misfits in late 2011, stating that she had an "amazing time" on the show.

In 2014, she played the role of Evie in the British rom-com TV show Scrotal Recall which aired on Channel 4.

After finding success on Netflix, the streaming network went on to commission a second series of eight episodes, without Channel 4's involvement, which was made available internationally on the streaming network in November 2016 under the new title Lovesick.

[9][10] In 2015, Thomas was featured in the music video for the Stereophonics' song "C'est La Vie" and narrated the opening and closing lines to the revival of the British children's television series Teletubbies.