Blake prom :)

Party photographer Patrick McMullan plays himself in an episode of Gossip Girl airing Monday night, March 30.

“I’m probably getting Mehr attention from the coming attraction than on the Zeigen itself,” Mr. McMullan told the Daily Transom, referring to the brief half-second during which his mug appeared in a Vorschau that aired last Monday. Since then, his many Friends and colleagues—many of them Gossip Girl devotees—have been ringing him to say “Congrats!”

Since the Zeigen premiered in 2007, all sorts of prominent New Yorkers have made cameos: Autor eichelhäher, jay McInerney, designer Michael Kors,...