Who is William Petersen?

William Petersen is an American actor and producer.

He is best recognized for appearing as Gil Grissom in CBS’ drama series ‘CSI: Crime Scene Investigation,’ for which he earned a Golden Globe Award nomination and a Screen Actors Guild Award.

He also garnered three Primetime Emmy Award nominations as the producer of the show.

William Petersen: Age, Parents, Siblings, Nationality, Ethnicity

William Petersen was born in Evanston, Illinois, United States on February 21, 1953. His birth name is William Louis Petersen and he is currently 67 years old.

His father’s name is Arthur Edward Petersen, Sr. and his mother’s name is Helen June Hoene.

William Petersen has five siblings namely, Arthur Petersen, Jr., Elizabeth Petersen, Mary Kay Petersen, Anne Petersen, and Robert Petersen. William holds American citizenship and mixed (Danish-German-French) ethnicity. His birth sign is Pisces.

Moreover, he is a big fan of the Chicago Cubs.

Education, School/ College University

Talking about William’s educational history, he graduated from Bishop Kelly High School in Boise, Idaho, in 1972.  He was accepted to Idaho State University on a football scholarship.