Who is Narrator from Welcome to the Monkey House and what is their importance?

The narrator of "Who Am I This Time" is also a character in the story. He is a member of North Crawford Mask and Wig Club and the director of A Streetcar Named Desire. He points out at the beginning of the story that he has no directing experience and very little acting experience. He enlists the help of Doris Sawyer to cast the show, though he is already set on Harry Nash for "the Marlon Brando part."