If Tennessee Williams' works are largely autobiographical, which character in A Streetcar Named Desire is considered closest to Williams himself?

In A Streetcar Named Desire,
Tennessee Williams is identified in two characters: Blanche Dubois and her husband,
Allan Grey.

In Blanche we see the debauched Williams,
addicted to pills and alcohol, slowly descending into depression and self-destruction,
and trying her best to come back to the surface to no
avail.

In Allan Grey, we see Williams also in that they are
both homosexual and seem to have a problem with leading double lives and accepting their
identities until their href="http://www.nytimes.com/books/00/12/31/specials/williams-drugs.html">deaths.

The
link includes more information on Tennessee's biographical facts to help you see more
similarities.