For example, the above GeGeGe no Kitaro comparison spans decades, while the Gintama images are separated only by a few years.
Just as manga characters change and evolve, anime characters do the same. Maybe it’s because artistic styles come in and out of fashion or due to the visions of different studios or directors.
Feel free to add any other character evolutions in the comments below.
Twitter user Billy Morgan recently cataloged some of the years.