Michelle Trachtenberg & Portia Doubleday Get Into Halloween Spirit at #JJALIENS Party!

Portia Doubleday goes for a gotchic look while stepping out for the 2016 Just Jared Halloween Party on Sunday (October 30) at Tenants of the Trees in Silver Lake, Calif.

The 28-year-old actress got a surprise at the event when she met a Mr. Robot fan dressed up in a costume inspired by the Emmy-winning series.

Also in attendance at the party were Michelle Trachtenberg dressed as The Secret Garden, Aubrey Peeples as Eleven from Stranger Things, Kathryn Gallagher, Alicia Sanz, and Zelda Williams.

Jess Weixler, her husband Hamish Brocklebank, and her friend Annie Ladino teamed up for a group costume – David S. Pumpkins and his two skeleton friends!

Guests at the event sipped on Spanish Cava from personal sized bottles provided by Freixenet!

FYI: Michelle is wearing an H&M Studio dress.