(Detective v1 031-032, 1939)
The only reason this guy’s minor is that Batman shoots him dead in 1939. I know he’s made a few reappearances over the years but mostly they’re retellings of that first story. Also I guess they’re calling him the Mad Monk now? Weird.
My point is that Batman deserves a vampire nemesis so they should BRING HIM BACK.
ADDENDUM: it’s very strange to me that in Batman: Red Rain it’s Dracula who vampires Batman and not the Monk, an established vampiric Bat-villain.