8) Jim Gordon
Looking at the current slate of DC Comics TV shows, Gotham is in many ways the odd one out. Despite focusing on Batman’s early years, the series is light on superpowers and has frequently struggled to stick to a tone, veering wildly between Batman and Robin and The Dark Knight territory. However, there’s a lot to like about this police procedural set in Gotham City, and it would be a lot of fun to see Jim Gordon and Harvey Bullock meet up with the heroes and villains of Legends of Tomorrow.
This dynamic duo have seen a lot of weird stuff, and a time travelling, dimension hopping group like this would definitely throw their world into chaos, but this could still work as a one off. What would be really great is if there was some sort of mention of Batman, but seeing as he seems to be off limits to these TV shows, that could be too much to hope for.
Maybe we could get a glimpse of him in the future similar to how Supergirl has handled Superman? That’s not asking for too much, is it?