In 2013, Thomas was in the film Sunshine on Leith. In 2014, she played the role of Evie in the British rom-com TV series Scrotal Recall which aired on Channel 4. After finding success on Netflix, the streaming network went on to commission a second series of 8 episodes, without Channel 4's involvement, which was made available globally on the streaming network in November 2016 under the new name Lovesick.