I doubt any are public domain in Australia since they have been in Berne since 1928. I guess it depends on how they protect their own works (they have to protect foreign ones the same way). But I don’t really have any interest to read through their laws now.
I would think they are all also copyrighted in most (if not all) of Europe.
In USA also probably no PDs unless somebody can explain why URAA (which automatically gave and restored copyrights to titles that are still copyrighted in their country of origin, even if the title had previously been [or fallen into] public domain in the USA ) wouldn’t have an effect on some of the titles.
But I don’t think any copyright owners would actually care about your dubs unless used for commercial purposes (if even then…).