The Witcher video games include some of the most iconic video game characters, and The Witcher 4 is likely to include at least some of them. As many of The Witcher characters are long-lived or even immortal with stories that were left unfinished or with potential left, it's likely that some will make an appearance in The Witcher 4. Characters who do reappear will likely have a connection to Ciri, or otherwise challenge her in some way.