UNBELIEVABLE! I was TOTALLY going to use Roy mabangis na kabayo myself when I saw the tanong via updates! I guess great minds think alike! Um, well, now that I've Nawawala Roy... I'll just go for the obvious choice.
Ling, you usually see him smiling, although he was pretty creepy when Greed took over but I didn't think that would be fair seeing it wasn't really him. But when Lan tagahanga got hurt he got pissed it was like, WOW!