Agreed. But I fear that won’t stop Hollywood anyway. Look at the Stepford Wives for instance.
And it would be animated. 
Isn’t the point that you have to cast the actors to fit their youngest age, where then spend the most time, then use make up to age them for the opening and closing acts in the future? Doc is ~45 when Marty’s parents are 17, so 20 years later, when Marty is 17 and his folks 37, Doc is ~65. You could probably cast the right mid 20s actor/actress for the parents and they look young for those scenes, then a little less work is required for the older scenes. But Doc needs to look mid-40’s at his youngest.
With that in mind, Kristen Bell (aka Veronica Mars) might still work for Lorraine.
Crap, she’s 30 now - might be a stretch.
Yes – this is why I suggested RDJ for Doc Brown.
Marty went back 30 years. Doc would be in his 30’s. Or, present day doc is in his 70’s.
Just de-age Christopher Lloyd with CGI. It’s simple. All you gotta do is throw money at the problem.
That’s interesting, because when trying to come up with a good Biff, all I could think of was Jake Busey. But he’s way too old.
And neither of the actors who played them were… Leah Thompson is just over a week older than Michael J Fox. (May 31, vs June 9, both 1961.) Crispin Glover is actually younger than Fox (and Thompson) by 3 years! (April 1964.)
Of course, since Thompson and Glover had to play the teenaged versions of George and Lorraine, as well as the 40-odd year old versions, they more or less had to cast youngish adults in those roles, but it’s still funny that the actor playing their son is the second oldest of the three.
Wow, I don’t remember that at all.
The version of you that was a devout fan faded from existence after successfully getting jiggy with Eleanor Roosevelt circa 1907.
You know, that last bit gets a little more jarring if Marty is black.
Kinda.
ACtually, with the (canon) video game coming out, it wouldn’t surprise me if the whole thing were done in CGI. They’ll have the voice actors, which are mostly the real cast, other than Michael Fox, who, last I heard, was being played by the guy who did his voice in the cartoon.
Repeat after me: “mitigation”…
Well… mid-20s, which is benchmark anyway for Hollywood highschoolers. (When I was a freshman at college I was SHOCKED by how young everyone looked, my perceptions having been set by TV).
But beyond that… some people just come with a baseline wider range of believable age. At 36, if I shave and wear a baseball cap, I still get carded (for movies!). But if I let my scruff grow and showed off my thinning hair, not so much.
I think Ellen Page fits that role pretty well - she can still play a high schooler, but can also act and play older.
She can definitely play slutty younger Lorraine. I see potential for older holier-than-thou revisionist Lorraine.
Nope, a new guy.
Can’t we just send a cyborg back in time to kill them before they have the chance to get the ball rolling?
You fool!* Did you not learn the lessons from the Terminator movies and short lived TV show? You might be able to push back the date, but it will still happen.
*I’m only kidding mods.
Marty - Thomas Dekker
Lorraine- Molly C. Quinn (plays the redhead daughter in Castle. She’ll be 19 in 2012) actually looks a little like a young Lea Thompson
Nice pic here
Doc Brown – oh man. this one would be very, very tough. Who could play such a over the top character without looking stupid?
Perhaps… James Roday for Doc Brown?
James plays a pretty wacky, over the top character on Psych. He’s older than he looks. Born in 1976. With the right makeup to look a little older and get the wild Doc Brown hair. It might work.
They could address this by making the time jumps bigger. That is, from 2015, jump back 60 years into the past, to 1955, and 60 years into the future, to 2075.
This way, both 1955 and 2075 are still hugely different from the present day, and the culture shocks can be played for laughs, like in the original series.
One thing that would have to change for the above to work, is that Marty meets his teenage grandmother in 1955, instead of his mother.