does robin ever find out who slade is?

No robin never does find out who slade realy is. In the comic boeken slade and robin never have this "arch nemisis" thing going on so i think the whole point of slade looking like robin in the toon is to say that robin is afraid to end up like slade. Its just a part of his personality. Hope this helped a little.

I think Slade is related to Robin some how because in season 1 episode 13 robin kicks off half of Slade's mask.Reveling dark hair and Robin is like Slade in some what of a matter. That is what I think about Slade and Robin.

robin pays no attention to the hair of slade but slade is somebody people want to see meer of. so slade will definentley be in the new cartoon network toon teen titans go! as will terra jinx gizmo and mammoth and atlas so we will know mabye in a few short weeks of months.

this is wierd i think it is ROBIN

Robin never finds out who he is, but Slade is actually Slade Wilson (or Deathstroke, but the writers of Teen Titans thought that was too hardcore). His son is Jericho, the blonde kid from Tibet. :)

As far as us fans know he never found out.

no but slade is death stroke from young justice and his hair actually goes all the way down to his back

No. But Slade's real name is actually just Slade, and his last name is Wilson. In The End part 2 Slade's face is a skull but I'm pretty sure this isn't what he NORMALLY looks like.