* In what state was William Petersen born?
* One of the roles that Peterson has played has been crime scene investigator, Gil Grissom on the tv drama 'CSI'. Petersen changed the character's last name to 'Grissom'. What was the name to be originally?
* Petersen's parents have owned and run a business that has been in the family for over four generations. What kind of business is it?
* When William was 15 he ran away from home to live with which relative?
* What does William like to be called?
* William had his first on stage experience when he was 10 years old. Whom did he play?
* He has one daughter by his ex-wife Joanne Brady. What is his daughter's name?
* William attended Idaho State University on what kind of scholarship?
* In which of the following feature films did Petersen star?
* William became engaged in March 2002 to Gina Cirone of Chicago. What was Gina's occupation at the time?