Doc Emmett Brown himself, actor Christopher Lloyd, has said he would "love" to reprise the beloved role in a speculative fourth "Back to the Future" film, were it to be made with all the original key players -- director Robert Zemeckis, writer Bob Gale, and actors Michael J. Fox, Lea Thompson and Tom Wilson.

"I would love to do Doc again, no question," Lloyd told The Hollywood Reporter. Yet the 77-year-old actor doesn't think a fourth film could be made easily: "It's tough to come up with an idea that contains the excitement of the original three. So it would be a real challenge for the writers to come up with an original 'Back to the Future' story that has the same passion and intensity and excitement as the other three. But it could be done, you never know."

Lloyd is optimistic that Fox would return to the role of Marty McFly, despite his ongoing struggles with Parkinson's Disease‎. "I think regardless of the Parkinson's, he'd probably jump on the role and he'd be great. I can't see doing another sequel without him." Lloyd added, "I would certainly want Bob Zemeckis directing it, Bob Gale writing it and the other principals being involved."

The "Back to the Future" trilogy has returned to everybody's consciousness this year, thanks to the 30th anniversary of the original film and the looming Oct. 21, 2015 date, which was the exact day Marty travels to the future in "Back to the Future: Part II."

When asked if he'd throw the first pitch in the World Series if the Chicago Cubs were to make it to the final round of the MLB playoffs -- just like they did in BTTF: PII -- Lloyd teased, "Maybe it'll happen. We'll see. They got to get there first."

The "Back to the Future 30th Anniversary Edition" Blu-ray is on sale Oct. 20.