If only it was that simple. IANAL and other disclaimers but let's take Mickey Mouse as a comparison point. Steamboat willie is in public domain so that particu

If only it was that simple. IANAL and other disclaimers but let's take Mickey Mouse as a comparison point. Steamboat willie is in public domain so that particular cartoon and aesthetic it introduces is fair game but modern day Mickey is not. To simplify: the one with white pants is good but the one with red ones is not. So let's pretend Tintin had his hair style in 1929 but got his blue sweater at 1969. I would imagine that would mean that you could make anything with a Tintin character (and call it Tintin) that has the hair style but put him in a blue sweater and you'll get in trouble. It's not just the character name that matters but various other pieces that make up the character and not all of them were introduced or became iconic in the same time period.