The first cast in some TV dramas is usually marked: Passerby A-XXX. Every drama has a character called passerby, which is the so-called "auxiliary role of auxiliary role".
There is a fundamental difference between a passerby and a general supporting role, that is, the supporting role is arranged on both sides of the protagonist for a certain purpose, while a passerby is purely passing by and has nothing to do with the protagonist in theory.
Extended data
Some characteristics of passerby a
1, can speak unknown things.
2. The film will provide strong evidence.
It will appear in news reports at any time.
4, with super gossip ability.
5, the ability to tell right and wrong is super high.
6. It will appear at the scene of the incident.
7. I have participated in all the plays and have a high reputation.
8. He has no fixed place and only likes walking. It is said that he has been walking all his life.
9, blockbuster, gossip reporters want to interview most.
Baidu encyclopedia-passerby a