Carrie-Anne Moss as Aria T'Loak

You know her as: Trinity (The Matrix)

Aria's as formidable as they come, and she's beyond atypical for an Asari. Unless you're looking for a dominatrix, she's not going to be fulfilling any of your fantasies. She'd rather run an underground crime network than strut around some Citadel watering hole with her tits half out. Carrie-Anne Moss pulled her swagger off so perfectly that we actually started to think of them as the same person in Mass Effect 2 and 3. They even look the same (blue skin and tentacle hair notwithstanding).