Funny - I JUST watched Under the Red Hood yesterday - was damn enjoyable!!!
How many robins total have there been? 2 or 3 I'm confused!
I'm only familiar with Dick Grayson (Nightwing) and Jayson Todd who, I believe, died in the comics. But I haven't read comics in a long time so the official storyline may have changed. Maybe wiki has the answer.
Edit: looks like there have been five Robins. And Dick Grayson is the new Batman?
"Recently, after Wayne's apparent death, Grayson has taken over the mantle of Batman."
Boy am I behind the times.
http://en.wikipedia.org/wiki/Robin_(comics)
This happened to the Flash character too. Barry Allen died and Wally West became the new Flash.