Martin Seamus "Marty" McFly Sr. is the world's second time traveler, the first to travel backwards in time and the first human to travel though time. He was also a high school student at Hill Valley High School in 1985. He is best friends with Dr. Emmett Brown, who unveiled his first working invention to him.
Doctor Emmett Lathrop "Doc" Brown is the inventor of the DeLorean time machine. He is supposedly born in 1920 but also could have been born in 1914, in Hill Valley, California to the German-born Judge Erhardt Brown and Sarah Lathrop. He usually had a pet dog – in 1955, his dog was named Copernicus after Nicolaus Copernicus, the third in a line of pets named after famous scientists, and by 1985 his dog was named Einstein after Albert Einstein. Doc's role models were scientists, as evidenced by the names of his dogs and the portraits of Isaac Newton, Benjamin Franklin, Thomas Edison, and Albert Einstein found in his laboratory. [Source: wikia]
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