Can I say I still think me and Karifean deserves bonus points for answering a question not even in the official list.

(SPOILER)

1) Probably from FFI so I'll stab at Garland.

2) Sazh from XIII, said in Chapter Eight after Vanille is forced to reveal the truth.

3) Lightning from XIII, said at the closing boss battle just before the last Orphan battle.

4) Sounds something Kefka would say in VI.

5) Ah!!!!! I think I know this one. After playing FFXIII-2 and fighting the Ultros DLC, I do recall Ultros introducing Typhon. I'm not sure Ultros actually said that quote, but thinking over it, with literally no other answers (and it does fit Ultros and Typhon's personality) I'll go with Ultros. Hey, it could be a worse calculated guess!