Most of them are; Steve Burton and Christy Carlson Romano both play Cloud and Yuffie. Cid is not given a voice in KH1 but Chris Edgerley voices him in KH2. Also, Mandy Moore does not play Aerith in this, instead it's Mena Suvari who has the role in KH2. Lance Bass doesn't voice Sephiroth like he did in KH1, but rather it's George Newbern (a.k.a. Nooj in X-2), whom also voices him in KH2. Rachel Leigh Cook plays Tifa in this and KH2.