I also watched Hungry and he...annoyed the hell out of me to the point where I didn't want to watch the drama anymore. I, badly, wanted him to end up with Chie (Takimoto Miori) but noo, he was just so in love with that Maria. Bleh. But overall, the drama was good. That cute little smile of his and those eyes, which always seem to express exactly the feelings of the character always get to me :D
Now, as a person, I can't believe Osamu is 30 years old. Seriously, he looks to be still in his mid twenties. I look forward to more of his work. He's a talented...still young man.