Lenora Isabella Crichlow is a British actress. She became known for her starring roles as Maria "Sugar" Sweet in the Channel 4 comedy-drama series Sugar Rush, Annie Sawyer in the BBC Three supernatural drama series Being Human, and Shania Andrews in the 2012 sports drama film Fast Girls. In 2013, Crichlow portrayed Chen Sam in the television film Burton & Taylor and Victoria Skillane in the episode "White Bear" of the dystopian sci-fi series, Black Mirror. She has since had regular roles in the ABC sitcom Back in the Game and the NBC comedy series A to Z. Since 2020 she has been part of the main cast of the HBO/Sky One comedy series Avenue 5 playing second engineer Billie McEvoy.

Sugar Rush is a British television teen comedy drama series developed by Shine TV and broadcast by Channel 4, loosely based on the Julie Burchill novel of the same name. It is centred on the life of 15-year-old lesbian Kim Daniels, who has moved from London to Brighton on the south coast of England. Throughout the series, Kim is forced to cope with her dysfunctional family; her burgeoning sexuality; and her infatuation with Sugar, a heterosexual girl.