There is a basset hound in episode 17, which is director Mamoru Oshii's trademark. He is credited as co-planner.
Kai's a nice boy, isn't he?
David: In the battlefield, the nice guys always die first. I don't want to see it happen.
Julia: You sure have changed.
Julia: Until recently, you were like an iron robot.
David: And now?
Julia: Now you're like an android or a cyborg.
David: I'm growing weaker ...