Who is a fictional character?

Perhaps all of them are fictional characters. Three of them are personas/ stage names of real people. one is a character in a play.

Player #97184361, I made the satirical remark suggesting that the personas, stage image, was a fiction. The names apply to the image. The person behind them, no matter their job, is not the same as the public image they project.

Tom, All of the other three are pop singers and entertainers. ! ! !

Othello what a name