Griff Tannen
E704429
Griff Tannen is a fictional bully and gang leader from the "Back to the Future Part II" film, known as the aggressive grandson of Biff Tannen in the futuristic Hill Valley.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Griff Tannen canonical | 6 |
| Buford Tannen | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7940356 — 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: Griff Tannen Context triple: [Hill Valley, hasFictionalResident, Griff Tannen]
-
A.
Buford "Mad Dog" Tannen
Buford "Mad Dog" Tannen is the ruthless, hot-tempered outlaw and ancestor of Biff Tannen who serves as the main antagonist in the Old West setting of Back to the Future Part III.
-
B.
Harry Dreyfuss
Harry Dreyfuss is an American writer and actor known for his essays, political commentary, and for speaking publicly about his experiences with harassment in the entertainment industry.
-
C.
Tom Langer
Tom Langer is an individual notable enough to be recognized as a bearer of the surname Langer, though specific widely known public details about him are not clearly established.
-
D.
Biff Tannen
Biff Tannen is the main bully and recurring antagonist in the "Back to the Future" film series, known for tormenting George and Marty McFly across multiple timelines.
-
E.
Anthony Ross
Anthony Ross was an American stage and screen actor active in the mid-20th century, known for his work on Broadway and in Hollywood films.
- 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: Griff Tannen Target entity description: Griff Tannen is a fictional bully and gang leader from the "Back to the Future Part II" film, known as the aggressive grandson of Biff Tannen in the futuristic Hill Valley.
-
A.
Buford "Mad Dog" Tannen
Buford "Mad Dog" Tannen is the ruthless, hot-tempered outlaw and ancestor of Biff Tannen who serves as the main antagonist in the Old West setting of Back to the Future Part III.
-
B.
Harry Dreyfuss
Harry Dreyfuss is an American writer and actor known for his essays, political commentary, and for speaking publicly about his experiences with harassment in the entertainment industry.
-
C.
Tom Langer
Tom Langer is an individual notable enough to be recognized as a bearer of the surname Langer, though specific widely known public details about him are not clearly established.
-
D.
Biff Tannen
Biff Tannen is the main bully and recurring antagonist in the "Back to the Future" film series, known for tormenting George and Marty McFly across multiple timelines.
-
E.
Anthony Ross
Anthony Ross was an American stage and screen actor active in the mid-20th century, known for his work on Broadway and in Hollywood films.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fictional character
ⓘ
film character ⓘ |
| antagonistOf |
Marty McFly
NERFINISHED
ⓘ
Marty McFly Jr. NERFINISHED ⓘ |
| appearsIn | Back to the Future Part II NERFINISHED ⓘ |
| arrestedBy | Hill Valley Police Department NERFINISHED ⓘ |
| arrestedFor | hoverboard incident at Hill Valley Courthouse Mall ⓘ |
| basedOn | Biff Tannen (as a future-generation counterpart) NERFINISHED ⓘ |
| characterTrait |
aggressive
ⓘ
hot‑tempered ⓘ intimidating ⓘ violent ⓘ |
| countryOfOrigin | United States (production origin) NERFINISHED ⓘ |
| createdBy |
Bob Gale
NERFINISHED
ⓘ
Robert Zemeckis NERFINISHED ⓘ |
| familyName | Tannen NERFINISHED ⓘ |
| father | Biff Tannen Jr. (implied in franchise lore) NERFINISHED ⓘ |
| fictionalUniverse | Back to the Future franchise NERFINISHED ⓘ |
| firstAppearanceYear | 1989 ⓘ |
| franchiseRole | comic relief villain ⓘ |
| gangMember |
Data
ⓘ
Spike NERFINISHED ⓘ Whitey NERFINISHED ⓘ |
| gangName | Griff's gang NERFINISHED ⓘ |
| gender | male ⓘ |
| genre | science fiction comedy ⓘ |
| grandfather | Biff Tannen NERFINISHED ⓘ |
| grandmother | Lorraine Baines McFly (alternate 1985 timeline implication) NERFINISHED ⓘ |
| hairColor | brown ⓘ |
| hasRelative |
Biff Tannen
NERFINISHED
ⓘ
Mad Dog Tannen (ancestor, franchise lore) NERFINISHED ⓘ |
| legalOutcome | sentenced to prison in 2015 timeline ⓘ |
| medium | live‑action film ⓘ |
| notableAction | crashes into Hill Valley Courthouse windows during hoverboard chase ⓘ |
| notableScene | hoverboard chase in Hill Valley town square ⓘ |
| occupation | gang leader ⓘ |
| portrayedBy | Thomas F. Wilson NERFINISHED ⓘ |
| productionCompany | Universal Pictures ⓘ |
| residence | Hill Valley NERFINISHED ⓘ |
| role |
bully
ⓘ
gang leader ⓘ |
| setting | Hill Valley Courthouse Square NERFINISHED ⓘ |
| speaksLanguage | English ⓘ |
| timePeriod | 2015 (future Hill Valley) ⓘ |
| usesTechnology | bionic implants (implied by sound effects and behavior) ⓘ |
| vehicle | Pit Bull hoverboard NERFINISHED ⓘ |
| weapon | extendable baton ⓘ |
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: Griff Tannen Description of subject: Griff Tannen is a fictional bully and gang leader from the "Back to the Future Part II" film, known as the aggressive grandson of Biff Tannen in the futuristic Hill Valley.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Buford Tannen
this entity surface form:
Buford Tannen