Mischa Barton enjoys a casual Sunday in sweatshirt and shorts as she walks her beloved dog in LA

Mischa Barton enjoys a casual Sunday in sweatshirt and shorts as she walks her beloved dog in LA

She started out as a child actress and found fame as Marissa Cooper on Fox TV’s hit series The O.C.

And more recently, Mischa Barton returned to the spotlight as part of MTV’s reboot The Hills: New Beginnings.

On Sunday, the 34-year-old was spotted taking her beloved dog for a walk near her LA home.

Casual Sunday: Mischa Barton was spotted taking her beloved dog for a walk near her LA home on Sunday, wearing a pale green sweatshirt and navy shorts

The actress was dressed in a pale green sweatshirt and navy shorts.

She stepped out in a pair of black Gucci slippers and wore her shoulder-length hair with an off-center parting and tucked behind her ears.

Barton watched patiently, holding a leash, as her pup explored some grass.

Relaxed: The actress, 34, stepped out in a pair of black Gucci slippers and wore her shoulder-length hair with an off-center parting and tucked behind her ears

Relaxed: The actress, 34, stepped out in a pair of black Gucci slippers and wore her shoulder-length hair with an off-center parting and tucked behind her ears

Barton is currently dating actor Gian Marco Flamini after splitting from Australian male model James Abercrombie in August 2019 after more than two years together.

Born in London and raised in New York, Barton divides her time between the U.S. and Europe. 

Her most recent big screen role is as a passenger for a ride share driver played by Stranger Things star Joe Keery in the dark comedy Spree.

The movie, originally shown at Sundance, was released on video on demand last month also features Franke Grande, Lala Kent and David Arquette.

She was also part of last year’s MTV reality show reboot The Hills: New Beginnings.

Classic: Following early roles in Notting Hill and The Sixth Sense, Barton burst into the spotlight with her starring role on the teen drama The O.C., which premiered in 2003

Classic: Following early roles in Notting Hill and The Sixth Sense, Barton burst into the spotlight with her starring role on the teen drama The O.C., which premiered in 2003

Barton returned to the spotlight as part of MTV's reboot The Hills: New Beginnings which premiered in 2019 (pictured) and also has a cameo in the Joe Keery dark comedy film Spree

Barton returned to the spotlight as part of MTV’s reboot The Hills: New Beginnings which premiered in 2019 (pictured) and also has a cameo in the Joe Keery dark comedy film Spree