People You Never Knew Were Science Fiction Fans: Paul Krugman, Nobel Laureate in Economics (2008).
From an interview in 2008:
Jim Lehrer: "When and why did you decide to become an economist in the first place?"
Paul Krugman: "That's a little embarrassing. I don't know how many of your viewers read science fiction, but there's a very old series by Isaac Asimov - the Foundation novels - in which the social scientists who understand the true dynamics save civilization. That's what I wanted to be; it doesn't exist, but economics is as close as you can get, so as a teenager I really got into it."
One of Krugman's earliest papers was a not-entirely-serious musing on interest rates and interstellar travel, and he even did the intro to a 2012 edition of the Foundation Trilogy.