This was Angelika Jager's one and only film, which is a terrible shame. She is by far the best thing in it. She can't act or deliver dialogue whatsoever - she can't even stand still convincingly, and she gives the impression that she was trying to deliberately sabotage all her takes. Perhaps she didn't get on with the director.
I can only assume she was hired because she was willing to take her clothes off, but I'm puzzled as to why she was never in anything else. The direct-to-video market has always had work for women who can't act, but look good naked, and she could always have been dubbed. In fact it puzzles me as to why she wasn't dubbed, given that the robots at least were looped later on.
Perhaps she was a random German tourist who the producer spotted shopping one day, or she was the producer's girlfriend, or the producer wanted to get into her pants, in which case I wonder if it worked. Or the director told her at the start of the film that she should act like a broken robot, and she took it too literally.