Fire Emblem: Awakening has "Marth" in the game who looks like a frenemy. We’re not talking about *that* Marth. The original Marth, now known as Hero King Marth, can join Krom’s party via downloadable content after you complete a battle.
Nintendo will release Marth on April 19, the game Fire Emblem: Awakening launches in Japan. Yes, it’s launch day DLC, but Hero King Marth is free until May 31. Afterwards, Marth will cost 300 yen. It’s unclear if "Marth" can join your party too, which would be pretty confusing when Krom does a roll call.