Christopher Lloyd at 80: Doc Brown star is still keen for Back to the Future 4

Lloyd may be known to movie fans as The Addams Family’s Uncle Fester and Judge Doom in Who Framed Roger Rabbit.

However, he’ll always be best remembered for his role as Doc Emmett Brown in the Back to the Future trilogy.

The inventor of the DeLorean time machine was last seen going back to the future in his time train with wife Clara and sons Jules and Verne.

While it’s been almost 30 years since that final scene in Back to the Future Part III, Lloyd – who turns 80 today – would love to come back for another sequel.

Speaking with Phoenix News Times in July, Lloyd said: “I’d be delighted.

“I’d love to be in a fourth film if they could come up with the right idea that extends the story and does it as well as the first three.

“Well, I think its a matter of, first of all, it’s important if Bob Zemeckis and Bob Gale are excited about doing another episode [of Back to the Future], I think, really, the most important thing is if they can come up with the right idea.

“I think that’s the challenge is to come up with something that really is as good as the originals. I suppose it could happen.

“I have not heard that they’re looking for that if they’ve made up their minds … hey, here’s something we could do, and they believed in it then they might get going to do it.”

While other stars like Michael J Fox, who played Marty McFly, and Thomas Wilson, who portrayed Biff, weren’t opposed to the idea, they admitted the possibility all comes down to producer Gale and director Zemeckis.

Speaking at Fan Expo Boston in August, Wilson joked: “Basically, I think America is saying, ‘Come on they’ve wrecked every other franchise with bad sequels, why not this one?’

“C’mon, we would watch it until it sucks!”

While Fox said writer Gale is “the gatekeeper.”

Nevertheless, while Gale has continued the story in Back to the Future video games and comic books, Zemeckis is pretty adamant there will never be a fourth film.

Speaking with the Telegraph he said: “That can’t happen until both Bob and I are dead,” he said.

“And then I’m sure they’ll do it, unless there’s a way our estates can stop it.”