Screenshot 1782
Biographical information
Date of birth1936
Age (1955)18/19
Age (1985)47
Age (2015)77
Physical description
Hair colorBlack
Eye colorUnknown (eyes hidden behind 3-D glasses)
Behind-the-scenes information
Played byCasey Siemaszko
Voiced byCasey Siemaszko

3-D was one of the three high school boys who made up Biff Tannen's gang in 1955.


"3-D" got his nickname from a distinctive character trait; he was always wearing a pair of cardboard 3-D glasses with red and blue lenses, which were worn in movie theaters when watching 3-dimensional movies.

Along with Skinhead and Match, the adult 3-D served as one of Biff's bodyguards in the ABC timeline 1985A. However, on this occasion, his glasses were not cardboard; instead, they were customized aviators which had red and blue lenses like his old 3-D glasses.

It remains unclear as to whether 3-D was still living in Hill Valley in 1985 and 2015.

Behind the scenes[]

  • 3-D was portrayed by Casey Siemaszko.
  • 3-D screams hysterically when entering Biff's car. It is said that this was mostly improvisation.
  • He was never referred to by his real name or his nickname. His nickname is only given in the films' novelizations, screenplays and credits.


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
Other Individuals
Match, Skinhead & 3-D | Goldie Wilson | Douglas J. Needles | Marcus Irving