Griff Tannen's gang was a gang led by Griff Tannen. It consisted of three members of similar age: Chester "Whitey" Nogura, Rafe "Data" Unger, and Leslie "Spike" O'Malley. Griff was the first in his lineage to allow a female into his group.
When Marty McFly intervened, he said no and resisted Griff and the gang. This led to a hoverboard chase around Courthouse Square very familiar to Old Biff Tannen. They trapped Marty over a manmade lake in front of the courthouse and hooked onto Griff's Pit Bull hoverboard. Griff and the gang zoomed towards Marty, but he jumped clear of Griff's bat and they hit the edge of the lake, flying straight into the courthouse's windows. The gang was then arrested by the police for damages and Marty Jr. never went on that robbery.
Behind the scenes
- In the opening sequence for the first season of Back to the Future: The Animated Series, Marty is being chased by Griff with two completely different unnamed gang members five months before the infamous hoverboard rampage. Canonicity, even within the context of the Animated Series, is questionable.