This is going to be a rather silly topic, but... Purely because I was bored out of my skull, I started Googling names of fictional people. For some reason, the first one that popped into my head was Dr. Zachary Smith, Colonel, USAF, saboteur of the Jupiter 2 mission on Lost in Space. I was amused (to say the least) to find the number of real-life people who share that infamous name. They include, among others, an attorney, a speech and hearing grad student, and a horn player. There's even a Dr. Zachary Smith who's an expert on environmental policy. (The fictional one was an expert in the field of "environmental control", whatever that is -- I still think this one's gotta be a gag!) And this has to be some writer's tongue-in-cheek joke: there was a character named Zachary Smith on The Guiding Light. Makes you wonder how many real-life J. R. Ewings, Carl Kolchaks and Archie Bunkers might be out there.