Warden Richter
Warden of Branderscar Prison.

After the alarm that preceded Grumblejack's destructive rush through the prison barricades, he was briefly glimpsed sprinting from his tower to join the guard pursuing Grumblejack and the villains out the gates.

He caught up to the escaped villians on the middle of Branderscar bridge. Cornering them with the guard, only in time to see them leap from the bridge into the ocean.