sora is the main character in kingdom hearts. Goofy and Donald travel with him. He lives on destiny island.
Roxas is considered to be in 2 of the Kingdom Hearts games. He is the main character in the beginning of Kingdom Hearts 2 and then he is the character you play as in Story Mode in Kingdom Hearts 358/2 days.
I think still Sora
It's still unknown.
Tidus is a character from the Final Fantasy series. He is the main protagonist in Final Fantasy X. Tidus also makes an appearance as a playable character in Kingdom Hearts and Kingdom Hearts II.
Sora A BOY!
She might be in Kingdom Hearts Birth by Sleep.Not Kingdom Hearts.
Although Kingdom Hearts III has not been started, we know that Sora will be the main character. In an interview with Tetsuya Nomura, he stated that Sora will always be the hero of Kingdom Hearts. ...It's not the case that when Sora's story is over another hero's story will begin; Sora will be the hero until the end. -Tetsuya Nomura
No. He is not a playable character in Kingdom Hearts 2.
Roxas, or also known as Sora's Nobody. Kingdom Hearts 3 is titled as "358 / 2 Days" for the Nintendo DS.
Leon is a side character that appears in most of the Kingdom Hearts games. His true identity is Squall Leonheart, the main character from Final Fantasy VIII. In the first Kingdom Hearts game Yuffie (another side character, originating from Final Fantasy VII) calls him Squall, but is quickly rebuffed, as Leon tells her he no longer goes by that name. It is not explained why, however.
Maybe, but it depends on which game your talking about. Kingdom Hearts Birth by sleep Sora is just a little kid that you meet at Destiny Islands for like 5 mins and for Kingdom Hearts 3, He should be the main character in it. I don't see why he wouldn't be.
There is no character that goes by the name of 'Thomas'in any Kingdom Hearts game.