Mischa Barton made many ‘It Girl’ lists in the 2000s following her breakout role as Marissa Cooper on the hit teen drama television series The O.C.
But on Thursday the actress played the role of doting doggie mama when she stepped out for a walk with one of her pet pooches near her home in Los Angeles. 

The Hills: New Beginnings star, 34, walked casually down the suburban sidewalk with her four-legged family member by her side, and a times let let the dog of its leash for some extra freedom.

Barton stepped out on another warm and sunny day in a white button-down shirt that was tucked into a long black skirt that came down to about mid-calf.

She also donned a pair of stylish black slips and carried a cream-colored purse over  her right shoulder.