Doc Brown is a fictional character from the popular movie franchise Back to the Future. He is a brilliant but eccentric scientist known for his wild white hair and inventive genius. Doc Brown is the creator of the time machine, which is built into a modified DeLorean car. His character is portrayed by actor Christopher Lloyd. In the films, Doc Brown serves as a mentor to the main character, Marty McFly. Together, they embark on time-traveling adventures that explore various historical events and alternate timelines. Doc's character embodies the spirit of innovation and curiosity, often leading to humorous and dramatic situations.