The first performers in Hollywood were actors and actresses.
But some became stars.
And some of the stars became superstars.
Meanwhile, in the background, there were the extras.
Were there star extras? Superstar extras? Or superextras?
No.
Same with character actors. Nobody ever became a star character actor or superstar character extra.
Or, if you prefer, supercharacter.
The ultimate role being the cameo, of course.
Superstars so super, they can be themselves and not have to act or do anything.
Just be there and be themselves.
No more acting needed at all.
Show up, smile, and pick up a check.