Absolutely! We won't accept duplicates from the same source material (so we can't have both youthful MCU Thor from pre-Ragnarok and Endgame Thor), but we'll happily accept duplicates from different source material.

Full disclosure: we're not comics experts, so we may have to consult with others more knowledgeable than ourselves if it comes down to 616 vs 1610 or what-have-you. (We had to phone a friend to remember the names of those...)