Justin Hartley Shows Off His Buff Biceps at the Gym

Justin Hartley heads to his car after an early morning workout on Saturday (September 30) in Los Angeles.

The 40-year-old This Is Us actor showed off his buff biceps in a blue T-shirt, gray shorts, and running leggings as he started off his weekend at the gym.

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The day before, Justin was spotted fueling up his truck before heading to the studio.

Earlier this week, Justin joined his This Is Us co-stars at the season 2 premiere party of their hit show.

This Is Us airs on NBC on Tuesdays.

10+ pictures inside of Justin Hartley stepping out..