Marth, the main lord of many Fire Emblem games does not need to be recruited since you get him at the beginning of the game.
marth is the hero from the first fire emblem game in the series
Marth and Ike are both in the Fire Emblem series, but are not in the same game. Marth is in: Fire Emblem: Ankoku Ryuu to Hikari no Tsurugi Fire Emblem: Monshou no Nazo Fire Emblem: Shadow Dragon Fire Emblem: Shin Monshou no Nazo - Hikari to Kage no Eiyuu while Ike is only in: Fire Emblem: Path of Radiance Fire Emblem: Radiant Dawn Both are also in Fire Emblem Awakening but as add on content
Yes
Marth is in: Fire Emblem: Ankoku Ryuu to Hikari no Tsurugi Fire Emblem: Monshou no Nazo Fire Emblem: Shadow Dragon Fire Emblem: Shin Monshou no Nazo - Hikari to Kage no Eiyuu He is also 'in' Fire Emblem Awakening, but only is available as add on content
Marth and Roy are both from the Fire Emblem series but are in different games. Marth is in: Fire Emblem: Ankoku Ryuu to Hikari no Tsurugi Fire Emblem: Monshou no Nazo Fire Emblem: Shadow Dragon Fire Emblem: Shin Monshou no Nazo - Hikari to Kage no Eiyuu while Roy is only in Fire Emblem: Fuuin no Tsurugi. He is seen in the secret ending of Fire Emblem: Blazing Sword as well. Also, both characters are in Fire Emblem Awakening, but only are available as add on content
Prince Marth is 16 in his game of Fire Emblem and in SSBB.
Marth's girlfriend is Caeda, also known as Sheeda.
No
Blade of Light
He's actually in 4 of them: - Fire Emblem: Ankoku Ryuu to Hikari no Tsurugi - Fire Emblem: Monshou no Nazo - Fire Emblem: Shadow Dragon - Fire Emblem: Shin Monshou no Nazo: Hikari to Kage no Eiyuu However, the latter two are remakes of the first two.
They don't appear in any of the games together, but I can tell you which one(s) each one is in.Roy is in Fire Emblem: Fuuin no Tsuruji (Japan only)Marth is in Fire Emblem: Shadow Dragon and two other Japanese Fire Emblem games.Ike is in Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn.Hope I could help.