The real Harm reaches the courtroom just as Palmer (as Harm) is about to expose Vickers to a lethal aerosol nerve gas. A physical fight ensues between the two "Harms" in the hallway, where the real Harm eventually unmasks and subdues Palmer. Key Cast and Characters Significance David James Elliott Harmon Rabb Jr.
Alan J. Levi (though some sources credit Kenneth Johnson). [S3E20] Imposter
The recurring antagonist who first appeared in this episode to plague the JAG team. Sarah MacKenzie The real Harm reaches the courtroom just as