As Herself/Himself

The L.A. Times considers the movie cameo. Cameos can be brilliantly funny in their unexpectedness (Steven Spielberg, Tom Cruise, Gwyneth Paltrow, Kevin Spacey and Danny DeVito in Austin Powers: Goldmember, Bob Barker in Happy Gilmore, Neil Patrick Harris in Harold and Kumar Go to White Castle) or provide gravitas to a role where it's needed (Kevin Spacey in Seven). They can also be painful.