Stephen and Evelyn Colbert arrive for a state dinner in Washington on Feb. 11, 2014. (Andrew Harrer/EPA)

Michelle Obama wasn’t the only woman responsible for comedian Stephen Colbert’s trip to Washington this past weekend.

“The Late Show” host caused a “Hey, isn’t that?” commotion Saturday as he waited in line for nearly 20 minutes to view the portrait of the former first lady at the National Portrait Gallery. But Colbert didn’t hop on the Acela down to Washington just to check out the local art scene.

Turns out Colbert’s wife, Evelyn, is an actress who was starring in a one-night production of “Shostakovich and the Black Monk: A Russian Fantasy” at Wolf Trap on Sunday night. Mrs. Colbert’s other credits include Amazon’s “Alpha House,” “The Hobbit: The Desolation of Smaug” and “Strangers with Candy,” in which she played her husband’s mom.

After cheering on the missus from the audience, a tipster tells us, the comedian headed to the lobby and “very graciously met with patrons” who’d suddenly realized they were at a play with the comedian. It appeared to be the cap on a busy weekend: The talk-show host had dinner with newly installed “CBS This Morning” co-anchor John Dickerson at Honeysuckle on Friday evening.