Answer:

earthman

AnswerCrossword Clue
EARTHMANOne of us, to an alien
EARTHMANFuture moon visitor.
EARTHMANNative of a certain planet
EARTHMANSci-fi guy
EARTHMANAlien's nemesis, in sci-fi films
EARTHMANAlien's nemesis, in sci-fi
EARTHMANAlien prey, in sci-fi