3-D was one of the three high school boys who made up Biff Tannen's gang in 1955. He got his nickname from a distinctive character trait; "3-D" was always wearing a pair of cardboard 3-D glasses with red and blue lenses, which were worn in theaters when watching 3-dimensional movies.
In the alternate 1985, he is seen still working for Biff, along with Match and Skinhead. On this occasion, his glasses are not cardboard; instead, they are aviators which have blue and red lenses like his old 3-D glasses.
Behind the scenes
3-D was portrayed by Casey Siemaszko.
He was never referred to by his real name or his nickname. His nickname is only given in the films' novels, screenplays and credits.
- Back to the Future
- Back to the Future Part II
- Back to the Future: The Game
- Back to the Future: The Game - Episode 1: It's About Time (One of Edna's newspapers describes 3-D and the rest of Biff's gang as juveniles crashing into a manure truck.)
| The McFly Family|
Marty McFly | George McFly | Lorraine Baines McFly | Jennifer Parker | Seamus McFly | Maggie McFly
Dave McFly | Linda McFly | Martin McFly, Jr. | Marlene McFly | Arthur McFly
| The Brown Family|
Dr. Emmett "Doc" Brown | Clara Clayton Brown | Jules Brown | Verne Brown | Einstein
| The Tannen Family|
Biff Tannen | Buford Tannen | Griff Tannen | Irving "Kid" Tannen
| The Strickland Family|
James Strickland | Roger Strickland | Irene Strickland | Edna Strickland | Gerald Strickland
Match, Skinhead & 3-D | Goldie Wilson | Douglas J. Needles