FFIV - Kain, Edge, Rydia
FFVII (and spinoffs) - Angeal, Genesis, Weiss, Vincent, Cid
FFVIII - Irvine
FFIX - Beatrix, Steiner, Freya, Garland (two garlands, that could be confusing <.<)
FFX/X-2 - Auron, Seymour, Kimahri