Sunny's career began whilst living in London. After a trip to Los Angeles to study with an acting Teacher, she decided that LA was a city she would like to live and work in. Not an easy transition, she moved to LA to pursue her dreams. Sunny began to book roles on TV shows including The Following with Kevin Bacon, 24, Heroes, Californication, NCIS, Undercovers written by J. J. Abrams, ABC's summer hit Mistresses and The Newsroom by Aaron Sorkin. Her first film role was with Alfonso Cuaron in his Oscar-nominated film Children of Men. She has worked with Directors including Mike Figgis, Roland Joffe and Ben Affleck.She was cast in Ben Affleck's Oscar-winning movie Argo. In 2013, Sunny competed against 6000 people and was selected to join the last 20 for the CBS Diversity Showcase program.This event highlighted her to the entertainment industry. In November 2014, Screen International named Tehmina as one of their 'LA Stars of Tomorrow'. A special edition to the magazine to highlight up and coming talent. She was portrayed as a Reporter in the Found footage Thriller The Vatican Tapes in 2015. She also has a recurring role on the CBS show Training Day opposite Bill Paxton.