What actors and actresses appeared in Frankenweenie - 1984?

There was no live-action film called "Frankenweenie" released in 1984. The film you're likely thinking of is the 1984 short film "Frankenweenie" by Tim Burton, which was animated and had no live-action actors.

It's possible you are thinking of the 2012 feature-length animated film "Frankenweenie", also directed by Tim Burton. This film did not feature any live-action actors either.