What is dr. emmet brown?

Dr. Emmett Brown is a fictional character portrayed by actor Christopher Lloyd in the Back to the Future film trilogy. Dr. Brown is a brilliant inventor who creates a time-traveling DeLorean car, which he and protagonist Marty McFly use to travel through time and fix various historical events. He is depicted as eccentric, quirky, and somewhat absent-minded, but ultimately well-meaning and determined to make the world a better place through his inventions. In addition to the Back to the Future films, Dr. Brown has also appeared in various other media, including comics, video games, and theme park attractions.