I think it kind of goes without saying but retroboot Brainy would be a great fit at thelegion. Actually, technically, you could even play post-ZH Brainy there since that Legion went off on a bus in Legion of Three Worlds, so he'd still be treated as a guest in the universe. All the npcs in the game are similar to post-ZH but they're slightly AUed to be different from canon, so people can play Legionnaires from other continuities as guests to the universe.

I perma-npc the game universe Brainy and it'd be a blast to play him against another Brainiac 5. (There's also some fun plots we have planned involving Robotica/the Coluans being dicks that might interest you). And I'd also love to toss my other characters at him.

For DC characters we also have Hal Jordan and a slightly AUed Inertia. (The big divergent point for him is just that he never went and killed Bart Allen).

Some other stuff about the game.

- easy AC (It's a points system but the number of threads you have to do is fairly easy and we're probably even reducing them due to the smaller size of the game)
- overarching plot
- castmates! Technically. The npcs do interact with the PCs regularly and a few have dedicated npcers.
- green scientists! Aside from another Brainiac, Brainy could do science with a ninja turtle and what's not to love about that?

And even if you're not interested in the game I have to high five you because LOSH! /high fives