Player Characters
Diehärte Klaus is the protagonist of Langrisser III. As a young boy, he dreamed of becoming a knight and at the age of 12 was sent to study swordsmanship and chivalry under William and Geriord in the Kingdom of Larcuss. The game begins with his knighting ceremony.
- Official Couple: With Freya. Their bloodline would eventually produce Leon.
A young and innocent girl. Even after her father, the Duke William, is murdered at the floating castle's surrender, she hides her sadness and behaves brightly. She cares for Diehärte as if he were her older brother.
- Official Couple: With Lewin. Their bloodline would eventually produce Ledin and Elwin.
Lewin is the son of Raymond, one of the feudal lords of Larcuss Kingdom. He looks like a child but has the steel nerves of an adult. His battle experience comes from fighting with Diehärte. He succeeds Elthlead Kingdom, which he helps to revive.
- Official Couple: With Tiaris.
- Precursor Heroes: The very first bearer of the Langrisser, and the forefather of the series' red-headed heroes, including the previous two protagonists.
A knight who has earned the title “Blademaster,” Gilbert joins forces with Diehärte and company in Scenario 3 when the necromancer Grove calls back one of his daughters, Coty, as an undead spirit. He vowed to give up his sword when his daughter perished, but Grove's cruelty reminds him there is a time for battle.
The original maiden of light, and the guardian of the the South side of the Lushiris Gate.
The archbishop of the Great Temple of Light, and the father of Sophia. He also guards the East Lushiris Gate Entrance.
The guardian of the West Lushiris Gate Entrance, with the ability to shapeshift into various demonic creatures.
- Last of His Kind: The last Holy Beast in existence.
The princess of Barral, and the fiancée of Diehärte.
- Official Couple: With Diehärte.
- And Then John Was a Zombie: Wielding Alhazard in one route leads to him becoming a white-haired incarnation of Bozel.
- Official Couple: With Varna. Their bloodline would eventually produce Werner.
- Revenge Before Reason: In one route, the loss of his loved ones provokes him into wielding Alhazard.
Kingdom of Larcuss
- Brainwashed and Crazy: After a battle that leaves him severely wounded, Geriord is infected with a parasite by Rag, becoming his minion.
- The Dividual: In Mobile, they act together as a single unit.
- Heroic Sacrifice: Geriord breaks out of his brainwashed state to save Layla's life, at the cost of his own.
Diehärte's uncle and Lewin's father, as well as the viscount of Larcuss. He later becomes the founding king of Elthlead, takes on the reign name of Sieghart, and is the soul imprinted on Langrisser at the time of its forging.
Rigüler Empire
The crown prince of Rigüler, and the cousin of Altemüller von Eigil. He killed his uncle and attempts to kill his father for a chance at the throne, but is ultimately defeated.
- Came Back Strong: After he is killed, Chaos revives him as the incarnation of Bozel seen in the earlier Langrisser games.
- Came Back Strong: After Altemüller kills him for his treachery, he is brought back by Chaos' forces, and becomes one of the great demon generals of Velzeria.
- Ascended Extra: She is not playable in III, but she is in the Mobile game.
Kingdom of Barral
Velzeria
- Master of Disguise: Her specialty, using illusion magic to disguise herself as the lost (and dead) Prince Richard in an attempt to claim the throne.
- The Smurfette Principle: The only female Velzerian commander.
- The Bus Came Back: Does not return with the other Velzerian Generals in V, but reappears in Mobile.
- Puppeteer Parasite: His specialty is creating and controlling these.
- Kick the Dog: His preferred targets to revive as minions are those close to the Army of Light, so that they'll have to slay their fallen loved ones to get to Grove.
- Necromancer: His specialty.
