A cameo is when a well-known actor or a celebrity plays a small part in a movie not about them. That can be very brief; as an example, the famed Robert Redford appears in Avengers: Endgame for about 10 seconds. Leonard Nimoy has a similarly brief bit in Star Trek Into Darkness.
I'm curious if there have been shorter cameos; particularly when compared to the fame of the actor. Has anyone been on screen for less than five seconds, before vanishing and never playing any other part in the film?
- It cannot be footage that originated from a different production, or from the public domain. Robert Downey Jr. is briefly shown on a television in Birdman, but the footage in question was from Iron Man 1 (I think). The actor must have actually come to the production of the movie in question and shot their scene.
- Exclude stingers that are separate from the rest of the movie and designed to tease more of the character/actor, who is planned have a greater role in the franchise.
- Exclude photographs, paintings, etc, that depict a known actor. The person must be really there.
- Exclude people deeply involved in the production of said film; e.g. a director's cameo.