Author Warren Murphy sort of did the opposite… he wrote two book series featuring the same insurance investigator and his Asian girlfriend but gave the characters different names. One series was called DIGGER, the other was called TRACE, and they both became the basis for the TV series MURPHY’S LAW, starring George Segal, which was my first staff job.
UPDATE (7-18-2005) James Reasoner’sliterary investigation into private eye Mark Wonder continues with another twist. This time the author is the same (Eric Thomas again) only now it’s the PI whose name changes. In STRIP FOR MURDER, Mark Wonder becomes Christopher Sly.