Jenette Goldstein as Private Vasquez...(who had never been mistaken for a man).
I wonder how long she had to workout for that role. Since it was her first movie role and it was the 80s there was not a lot of coverage like there might be today. And since she was never buff again, as far as I know, I can only assume she got in shape just this one time.
BTW found this on her IMDB page
Was considered for the role as the Enterprise-D's chief of security on Star Trek: The Next Generation (1987). Her role in Aliens (1986) as Private Vasquez was the inspiration for the role of Tasha Yar which eventually went to Denise Crosby.That might have been cool. To see a bit of muscle stretching that starfleet uniform a little