So for those who played Fire Emblem Awakening (I didn't), do these characters retain the same voice actors from the original game?
Lucina sounds like Laura Bailey, and I looked it up, and she did her voice in Awakening as well. Don't know about Chrom or either Robin, though.
And has Marth ever had an English voice, or is he just gonna speak Japanese forever in Smash Bros.?
They all sound the same to me.
Though I'm not sure about Robin's default voice. I don't remember his/her voice well since I may have adjusted mine to be different. It sounds similar.