Roy Gramheart is a tall man with brown eyes, swept-back hair and a fierce expression. He wears a gray-brown blazer and trousers over a white collar shirt with the top button loose, brown shoes and a gold buckled belt. He also possesses a wrist watch and red handkerchief in his blazer pocket.
Although Roy is initially represented as a polite, well-mannered leader, he is a skilled politician, being capable of identifying threats and is solely interested in Calvard's benefit. He is willing to break treaties behind the scenes and vaguely threaten other nations into submission. Lechter Arundel considers him to be even more troublesome than Rocksmith because of said ambitions. He had a wide range of supporters with his casual but reliable attitude, but made that support even stronger by giving back the compensation from the Erebonian Empire to the people in order to revitalize Calvard’s economy.
He is known for making quick decisions, and instead of taking a time-consuming “reconciliation” approach to matters, he tends to mock those attempts as “competition” and diverts the energy spent on that to a different cause. In his politics he understands that it may create new and unnoticeable divisions between his people, but seems confident that will be manageable.
In S. 1206, Gramheart ran as the candidate for the opposition party in the election for the presidency of the Republic of Calvard against Samuel Rocksmith. He campaigned against the current president's policies on immigration as well as his soft response to Erebonian expansion. Gramheart easily won election and became slated to become president in S.1207.
In the aftermath of the Great War, as president-elect, he forced Rocksmith to demand astronomical reparations from the Erebonian Empire. Once he took office, he distributed those funds among the populace, making him very popular among Calvard's people.
After Reverse Babel's appearance and Elysium's threat to destroy Baratie Air Force Base, Gramheart contacts the Crossbellian Goverment, represented by Henry MacDowell, and offers that the Republic Army of Calvard could assist in its destruction, an action which would likely result in Crossbell's renewed occupation. He additionally states that he will be forced to deploy the army to protect the nation's interests if the weapon is not dealt with in time, but the group is already aware of his motives. They manage to destroy Reverse Babel before it could fire once more, thereby keeping Crossbell safe from Gramheart's intentions.
At some point after the second Crossbell incident, with the help of MTSC and a CID intermediary, Gramheart managed to barge into a meeting between the Grandmaster, McBurn and F. Novartis in the Celestial Globe. Despite the Grandmaster referring to him as their most formidable opponent for their next plan, Gramheart states that he actually came to negotiate with her, promising to not interfere with the society's Eternal Recurrence Plan in return for them not disrupting his research into other "possible worlds". The Grandmaster agrees to his request.
- Romano, Sal (30 July 2021). "The Legend of Heroes: Kuro no Kiseki details 12 more sub characters". Gematsu. Achived from the original on 31 July 2021.