William L. Petersen
E841579
William L. Petersen is an American actor best known for his role as Gil Grissom on the television series "CSI: Crime Scene Investigation."
All labels observed (1)
| Label | Occurrences |
|---|---|
| William L. Petersen canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10124316 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: William L. Petersen Context triple: [To Live and Die in L.A., leadActor, William L. Petersen]
-
A.
William A. Petersen
William A. Petersen was a 19th-century Washington, D.C. tailor and boardinghouse owner whose home became historically significant as the place where President Abraham Lincoln died.
-
B.
John McCrea
John McCrea is a British actor and singer best known for originating the title role in the West End musical "Everybody's Talking About Jamie" and for his film work, including a role in Disney's "Cruella."
-
C.
Jack B. Sowards
Jack B. Sowards was an American screenwriter best known for writing the screenplay for the film Star Trek II: The Wrath of Khan.
-
D.
John H. Hinchcliffe
John H. Hinchcliffe was a prominent New Jersey political figure who served as mayor of Paterson and as a U.S. Representative in the early 20th century.
-
E.
Lewis G. Stevenson
Lewis G. Stevenson was an American politician and public official from Illinois, known for his role in the prominent Stevenson political family.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: William L. Petersen Target entity description: William L. Petersen is an American actor best known for his role as Gil Grissom on the television series "CSI: Crime Scene Investigation."
-
A.
William A. Petersen
William A. Petersen was a 19th-century Washington, D.C. tailor and boardinghouse owner whose home became historically significant as the place where President Abraham Lincoln died.
-
B.
John McCrea
John McCrea is a British actor and singer best known for originating the title role in the West End musical "Everybody's Talking About Jamie" and for his film work, including a role in Disney's "Cruella."
-
C.
Jack B. Sowards
Jack B. Sowards was an American screenwriter best known for writing the screenplay for the film Star Trek II: The Wrath of Khan.
-
D.
John H. Hinchcliffe
John H. Hinchcliffe was a prominent New Jersey political figure who served as mayor of Paterson and as a U.S. Representative in the early 20th century.
-
E.
Lewis G. Stevenson
Lewis G. Stevenson was an American politician and public official from Illinois, known for his role in the prominent Stevenson political family.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
American actor
ⓘ
human ⓘ |
| activeYearsStart | 1980 ⓘ |
| appearedIn |
CSI: Crime Scene Investigation
NERFINISHED
ⓘ
Fear NERFINISHED ⓘ Manhunter NERFINISHED ⓘ The Contender NERFINISHED ⓘ To Live and Die in L.A. NERFINISHED ⓘ Young Guns II NERFINISHED ⓘ |
| awardReceived | Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series NERFINISHED ⓘ |
| birthName | William Louis Petersen NERFINISHED ⓘ |
| characterPlayed |
Gil Grissom
NERFINISHED
ⓘ
Richard Chance NERFINISHED ⓘ Will Graham NERFINISHED ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfBirth | 1953-02-21 ⓘ |
| educatedAt | Idaho State University NERFINISHED ⓘ |
| employer | CBS NERFINISHED ⓘ |
| ethnicGroup |
Danish American
ⓘ
German American NERFINISHED ⓘ |
| eyeColor | blue ⓘ |
| fieldOfWork | performing arts ⓘ |
| genre | crime drama television ⓘ |
| hairColor | brown ⓘ |
| hasChild | Maite Petersen NERFINISHED ⓘ |
| hasResidenceHistory | Boise, Idaho, United States NERFINISHED ⓘ |
| hasSibling |
three brothers
ⓘ
two sisters ⓘ |
| knownFor | portraying Gil Grissom on CSI: Crime Scene Investigation ⓘ |
| languageSpoken | English ⓘ |
| memberOf | Steppenwolf Theatre Company NERFINISHED ⓘ |
| name | William L. Petersen NERFINISHED ⓘ |
| nominatedFor | Golden Globe Award for Best Actor – Television Series Drama NERFINISHED ⓘ |
| notableRole | Gil Grissom NERFINISHED ⓘ |
| notableWork |
CSI: Crime Scene Investigation
NERFINISHED
ⓘ
Manhunter NERFINISHED ⓘ To Live and Die in L.A. NERFINISHED ⓘ |
| occupation |
actor
ⓘ
film actor ⓘ stage actor ⓘ television actor ⓘ |
| placeOfBirth | Evanston, Illinois, United States NERFINISHED ⓘ |
| portrayedIn | entertainment media about CSI franchise ⓘ |
| residence |
Chicago, Illinois, United States
ⓘ
Las Vegas, Nevada, United States NERFINISHED ⓘ |
| spouse |
Gina Cirone
NERFINISHED
ⓘ
Joanne Brady NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: William L. Petersen Description of subject: William L. Petersen is an American actor best known for his role as Gil Grissom on the television series "CSI: Crime Scene Investigation."
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.