3. She plays Alex on The CW's Nikita (2010).

On The CW remake of the classic femme fatale series, Lyndsy plays Alex, a new recruit to the Division, where they train troubled young people to become ruthless spies and assassins. And, in the process, pawns to catch the rogue former Division standout Nikita (Maggie Q). Alex, however, is a mole placed by Nikita into Division, which she's trying to destroy. A girl hot enough to weaken a powerful, evil criminal with lust and then skilled enough to subsequently put him in a headlock? Well-played, Nikita...well-played.