In issue #13, we discover (among other things) that the original Manhunter's dog was actually a robot.
A robot dog. Love dogs; love robots; love robot dogs. Somebody really needs to give Cliff Steele a robot dog named Robby; that's what the Chief needs to work on in his lab.
Okay, now the whole "robot dog" thing was made up in some previous Manhunter run, so no points for that. And the only time we actually see this robot dog is in flashback and when it gets "killed" by being thrown through a window. Negative points for Injury to the Dog motif (thought, in fairness, it's just a robot).
BUT. There's an off-line robot dog. And a tech-master named Dylan hanging around. I am convinced, as an article of faith, that if this series is allowed to continue, Dylan will repair the robot dog and it will become Kate Spencer's sidekick.
I like Batman. JLA's fun. But face it: there's no chance books like that might feature a robot dog sidekick. In Manhunter, it's not only possible, but if it happened you wouldn't bat an eyelash. And that is one of the reasons I read Manhunter.