I have sent to Mr. Petersen LOR, SASE, an index card and a CSI dvd insert. I have received both autographed.
I have used the following address:
William Petersen
c/o "Dublin Carol"
The Steppenwolf Theatre
1650 N. Halsted St.
Chicago, IL 60614
USA
Sent: 11/13/2008
Received: 12/19/2008
Sorry, no scanner.
Merry Christmas!