Who is the main protagonist in, the 1985 film, Back to the Future?

The main protagonist in the 1985 film "Back to the Future" is Marty McFly. Marty is a high school student who accidentally travels back in time to 1955 with the help of a time-traveling DeLorean car invented by his eccentric scientist friend, Doc Brown. Throughout the film, Marty navigates the challenges of being stuck in the past, trying to find a way back to his own time while also ensuring his parents fall in love so that he is born in the future. Marty's determination, resourcefulness, and growth throughout the film make him the central character, driving the storyline and capturing the audience's attention.