 "Lt. Cmdr. Mike Hewitt" is the torpedo operator on the surface ship  who calls out the range of the torpedo fired on the Red October,  only for it to be remotely detonated by James Greer  (James Earl Jones (qv)) just prior to impact (to fool the Red  Octobers crew being rescued on the surface). He is not referred to  by name in the movie, but his character and the actors name is  listed in the credits. "Mike Hewitt" is a real person, although at  the time of filming he was Captain Michael Hewitt (III) (qv) (now  retired 