Dr. Emmett Lathrop “Doc” Brown, Ph.D., played by Christopher Lloyd, is best friends with Marty McFly in the Back to the Future series. Brilliant but absentminded, he invents a time machine using a DeLorean, a flux capacitor, and plutonium stolen from Libyan terrorists. Great Scott!
Michael J. Fox plays Martin “Marty” Seamus McFly, the main character in the Back to the Future series. When he hits 88 mph in Doc Brown’s DeLorean, he accidentally goes back in time, and must do everything in his power to avoid wiping out his own existence.