Sienna Miller, Julianna Margulies & More Live It Up At Celebrity Charades Gala 2016!

Sienna Miller is all smiles while attending the Labyrinth Theater Company’s Celebrity Charades Gala 2016 held at Capitale on Monday (September 19) in New York City.

The 34-year-old actress was joined by Julianna Margulies, Justin Long, Bobby Cannavale, Billy Crudup, Boardwalk Empire‘s Margot Bingham, Orange Is The New Black‘s Elizabeth Rodriguez, Josh Charles, Richard Kind, Dash Mihok and Billy Porter at the benefit for the non-profit organization.

PHOTOS: Check out the latest pics of Sienna Miller

Last week, Sienna stopped by the Michael Kors Spring 2017 Runway Show held as part of New York Fashion Week.

20+ pictures inside of Sienna Miller and others at the Celebrity Charades Gala 2016…