fate/zero caster and ryunosuke

I just finished Fate/Zero (or actually, about three days ago), and it was pretty fun. I first started watching it because of Rider and Waver but found Caster and Ryunosuke overwhelmingly cute *'w'*...

Yeah I agree that Lancer and Gilgamesh is pretty hot but that I tend to like characters that lack superego lol
I think caster's voice acting is amazing and probably that's the biggest reason I like him D:

But season 4 is coming out in April.
How in the world am I supposed to wait till then??? :Q