I doubt you'll ever see Marth or Roy, they weren't ever released here. And I've never seen returning characters. Most every FE game follows a slightly different storyline and everything, so there's your chances.
Only thing that bums me out though is that I still haven't gotten my hands of the GC game. That, and Lady Lyn is an item instead of a character in SSBB. XP
Currently Playing: Lunar KnightsVideogames like...run through my blood. Leik srsly.Next on the list: FE:Path of Radiance (SHAH I'm lame and still haven't gotten it. XD)