I figured the 4 Cylons was a gimick from last season and would be explained away in the new episode but to my suprise they are. Even after the opening credits I had my doubts but when the raider turn around without shooting I knew it had to be.

I'm not sure about Starbuck but at this point I think thats too obvious and she isn't going to be the 5th.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!