Cabbages

In Robert Altman’s perfect film, The Long Goodbye, there’s a security guard who does impressions. When the lead characters drive in and out of the gated community he works at, he stops them for a moment to ask if they want to see his new impression.

He’s not a huge presence in the film, he appears in maybe three or four brief scenes, but he does a lot of heavy lifting for the world building of the film.