Washington is a regular at D.C. events. She's attended the dinner many times in the past and was also at Obama's inauguration.
Sofia Vergara, Eric Stonestreet, Ty Burrell and Julie Bowen from "Modern Family" — who've been dinner regulars — are also attending.
Joining them will be Connie Britton, Hayden Panettiere and Charles Esten from "Nashville," Sen. Amy Klobuchar (D-Minn.) and Admiral James Winnefeld, Vice Chairman of the Joint Chiefs of Staff.
— This post was updated at 2:18 p.m.