Plot hole: Speedy's bow got cut up by Cheshire in the previous episode ("Calling All Titans"), and in the Brotherhood base he is seen frozen with empty hands raised. But when he is unfrozen in this episode (zoom in to check), he suddenly does hold a new bow in his hands.
Plot hole: When the raptors bring down Beast Boy in his Tyrannosaurus form, he escapes the batch lying atop of him by turning into a dragonfly. When he does so, the heap of dinosaur bodies does not sag down at all, and to fill out the gaps, a whole lot of additional raptors appear in his stead from God-knows-where.
Chosen answer: This is Dick Grayson who will later become Nightwing.
Greenman37