Sky (Revealed in Code of the Clans)
She is the leader of the modern Skyclan :)
Leafdapple/Leafstar
Maybe. We don't know for sure. The summary of Skyclan's Destiny is mainly of Leafstar's struggles being a leader. The book comes out on August 3rd, 2010.
The first leader of SkyClan was Skystar, just as the first leaders of ThunderClan, RiverClan, ShadowClan, and WindClan were Thunderstar, Riverstar, Shadowstar, and Windstar. This has been confirmed by Erin Hunter. In Secrets of the Clans Skystar is not mentioned because Firestar's Quest had not yet come out.
The first SkyClan disappeared because they were driven out of their territory by Twolegs (humans) and had to scatter and live as loners or in other Clans. This event is known as the Skyclan exodus. SkyClan was later reassembled by Firestar in the Warriors series.
People say that it's Leafstar leader of Skyclan. I think that's true. But who knows. And if you wanted to know this Sckyclan's destiny might come out on July 21 or sometime in August like the 8th.
Echosong joined SkyClan because she kept on having dreams about SkyClan's ancestors. Although Echosong is the medicine cat of SkyClan she has no SkyClan ancestry.
Leafstar's name was Leaf as a rogue, but her warrior name was Leafdapple.
Leafpool becomes Leafstar in the "Warrior Cats: SkyClan and the Stranger" manga series by Erin Hunter. She becomes the leader of SkyClan after reuniting with the clan and helping them to rebuild and thrive once again.
No, they were the first.
I doubt it.
Yes, and it is called Skyclan's Destiny.