Final Fantasy Did You Knows?

[Meiu]

About your Cloud/Zack comment:

If you look at Cloud's FFwiki page under "creation and development", it says that Nomura designed Cloud as one of the first three characters for FFVII. It also says that his original design was closer to that of Angeal, but they changed it so his hair was blonde and spiky so it would stand out more.

Zack's character was designed quite near the end of production and was one of the last characters to be drawn/designed by Nomura. (See here) Though his character's role had existed almost from the start, Zack himself was a late addition.