In terms of the character doubling, some choices are obvious: Dukat and Weyoun as asshole cops isn’t a huge surprise, and even though Cassie doesn’t have the same ambitions Kasidy does (for understandable reasons), her relationship with Benny is as strong as Kassidy’s is with Sisko. Other connections are subtler, like, say, O’Brien turned into the Isaac Asimov stand-in Albert Macklin, who loves machines much like an engineer would. Jimmy isn’t exactly like Jake (Lofton’s performance is endearingly forced, and he is, I think, the only actor to ever say the n-word on a Trek show), but his relationship with Benny is of the sort where you can imagine the writer trying to come up with something better for both of them, a situation in which the older man can impart some much needed knowledge to the younger. Seeing Odo as Pabst might be the coldest cut of all, as Pabst’s placating approach to his work is similar to Odo’s behavior during the Cardassian occupation: a shape-shifter who only chooses the form that will please his masters.
Yet Odo, our Odo, rose above this, and if you accept, for a moment, that Benny really did write everything we’ve been watching over the last six seasons, there’s something beautiful in how he tried to find ways to turn ordinary people into heroes. The writing staff at the magazine became a brave crew with complicated histories and passions; more, they became a family, one in which Sisko is first among equals. Cassie got a ship and adventure. Willie Hawkins, the lady loving baseball player became a warrior (a somewhat humorless and stiff-necked warrior, but when a guy keeps hitting on your girl like that, you gotta take revenge where you can find it). The asshole cops get justice as villains who will, in the end, be defeated. And Benny? Benny gets a space station and a loving father and a loving son. He gets the respect of his peers and the voice of the gods.