Truman Capote
Truman Capote has a cameo. Alvy is making quips about people walking by. He says "There's the winner of the Truman Capote look-alike contest" as Truman Capote walks through the frame. Several actors who later gained a higher profile had small parts in the movie: John Glover as Annie's actor boyfriend, Jerry; Jeff Goldblum as a man who "forgot [his] mantra" at Tony Lacey's Christmas party; Beverly D'Angelo as an actress in Rob's TV show; and Sigourney Weaver, in her film debut, in the closing sequence as Alvy's date at the movie theater.