Didn't check the credits, but was the voice actor of one of the vandals the same as Caldor from Young Justice?
I can't find the credits online yet, but if that was Khary Payton, I didn't recognize him.
But I did determine that both of the vandals are established Batman villains: Daedalus Boch, aka Doodlebug
, and Tucker Long, aka Junkyard Dog
. They both made their debut as Arkham inmates in 2003's Arkham Asylum: Living Hell
by Dan Slott and Ryan Sook. Lunkhead
from last week's episode also debuted there. I think that ties Slott & Sook with Bob Kane & Bill Finger as creators of the largest number of characters to appear on BtB thus far; Kane & Finger created Batman, Gordon, and Alfred. (Mike Barr & Jim Aparo created Katana, Gardner Fox & Carmine Infantino created Barbara Gordon, Grant Morrison & Andy Kubert created Pyg & Toad, Bob Haney & Ramona Fradon created Simon Stagg, John Ostrander & Tom Mandrake created Michael Holt/Mr. Terrific, John Byrne created Magpie, and Alan Grant & Norm Breyfogle created Anarky.)