World's Most Beautiful Issue
On Sale April 26
How you know her
The former Bones and Nikita guest star gets even fiercer as shield maiden Lagertha on History's hit Vikings.
Her inner warrior
"Putting on the lip gloss and hair has taken getting used to," says Winnick, once a top-level tae kwon do competitor in her native Canada. "I grew up in a martial arts gym, and I've trained women to defend themselves. It gives them such power and strength. Confidence makes you feel more beautiful."
Her surprising beauty advice
"First thing in the morning, throw cold water or a bucket of ice on your face! Kurt Russell told me that while shooting [the upcoming comedy The Art of the Steal]."
Her quick beauty fix
"A good pair of stilettos always helps to make me feel beautiful. And a smile!"