Emmett Lathrop Brown, Ph.D., commonly referred to as "Doc Brown", is a fictional scientist character in the Back to the Future franchise. In the world of the franchise, he is the inventor of the world's first and second time machines, the first (counting in order of his personal chronology) constructed using a 1981 DeLorean sports car, and the second constructed using a steam engine locomotive.
The character is portrayed by Christopher Lloyd in all three films, as well as in the live action sequences of the animated series. He is voiced by Dan Castellaneta in the animated series. The character's appearance and mannerisms are loosely inspired by Leopold Stokowski and Albert Einstein. He is of a benevolent mad scientist archetype, with his madness being visionary and eccentric enthusiasm rather than insanity or evil.
In 2008, Dr. Emmett Brown was selected by Empire magazine as one of The 100 Greatest Movie Characters of All Time, ranking at #20.
Source : Wikipedia
