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Gale Force, one of the hosts of the Wintertainment parade, is John Jones.
Hey, It's That Voice!: Dementor at the beginning is played by Richard Moll, who at the time was voicing Two-Face in Batman: The Animated Series and is best known as Bull the bailiff from Night Court. When he says "Ta-ta, Turbo Man!", his voice becomes a dead ringer for that of Two-Face's.
He's not the only DCAU actor to appear, either: as noted above, Gale Force is played by Phil Morris, aka Vandal Savage and Doc Saturday.