Kazami Shiro's family.
Kotaro's foster father, Whale Kaijin, Shadowmoon, Battle Hopper, the parents in RX.
Death in general was always an emotional thing in Kuuga but the death of the young girls father in episode 2 and how it effects Godai, also the effect of the deaths caused by the porcupine Gurongi on Godai stand out to me. Also Godai's own "death". I mean I knew where the show was going with it but it still had an effect anyway. That scene where you're just seeing Ichijo's reaction from outside his car with no sound but the police sirens. The look on his face.
I have to feel for Ryo/Gills in Agito. This poor guy had the worst luck when it came to women.
Even though I got my problems with Ryuki I agree with others here about Shinji's death.
and finally, Kusaka in Paradise Lost because at that point my enjoyment of the movie shot waaaaaaaay up. If only the series could have dusted Kusaka in the early going like the movie did. :laugh: