The Gray Ghost

[Goshdarn Batman]

Someone should bring this character back, in his own comic book I imagine something like Sandman Mystery Theatre...minus all the dark stuff, of course. Why not? Pulp heroes are doing pretty well over at Dynamite.

And maybe he could team up with Nightshade from The Flash tv series!t:

 

[Comics N' Toons]

DC did a non-pulp/superhero version of "The Gray Ghost" character in some Batgirl comics where he helps out Batgirl on a mission. It was not the same character from BTAS but he was called The Gray Ghost none the less!

 

[The Joker]

Simon Trent was an old man in BTAS. He didn't do much physical stuff with Batman. I don't think he'd be cut out for full time superhero escapades as GG.