A relative unknown in the U.S., Conn got her big break in the UK hit drama, 'Mistresses.' Now she's captivating as Elizabeth Shannon, a trauma surgeon who, together with her husband Jim (Jason O'Mara) and three children, has been given a chance to help re-build civilization by traveling back 100 million years as part of the Terra Nova colony.

'Terra Nova' premieres Mon., Sept. 26, 8PM ET on Fox