. "Sullivan (Secret of NIMH)"@en . . . . . . . . . . . . . . . . . "Sullivan is the unwilling tertiary antagonist in The Secret of NIMH. He is one of the Rats of Nimh and Jenner's henchman. He was voiced by the late Aldo Ray."@en . "Sullivan is the unwilling tertiary antagonist in The Secret of NIMH. He is one of the Rats of Nimh and Jenner's henchman. He was voiced by the late Aldo Ray."@en . . . .