Eh, a lot of people don't really realize Christopher Lloyd wore a lot of makeup in the 1985 scenes in
Back to the Future:
It was one of the reasons why early in
Back to the Future Part II Doc Brown is shown peeling a 'mask' off from the 'rejuvenation' work he'd had done; it was a plot device purely meant to allow Lloyd to forego the extra makeup.
By comparison
Clue was also made in '85:
Here he is in
Walk Like A Man, from 1987: