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For fighter info, see Byleth (SSBU).
Byleth from FE: Three Houses

Official artwork of both genders of Byleth from Fire Emblem: Three Houses.

Universe Fire Emblem
Debut Fire Emblem Heroes (2019, technical debut)
Fire Emblem: Three Houses (2019, proper debut)
Smash Bros. appearances Ultimate
Most recent non-Smash appearance Tetris 99 (2019, cameo)
Console/platform of origin Android/iOS (technical debut)
Nintendo Switch (proper debut)
Species Demigod
Gender Varies
Place of origin Fódlan
Designed by Chinatsu Kurahana
English voice actor Male: Zach Aguilar
Female: Jeannie Tirado
Japanese voice actor Male: Yūsuke Kobayashi
Female: Shizuka Itō
Article on Fire Emblem Wiki Byleth

Byleth (male: ベレト; female: ベレス, Byleth) is a character from the Fire Emblem series. As the playable avatar in Fire Emblem: Three Houses, Byleth's name, gender, birthday and dialogue options can be customized. Unlike fellow Fire Emblem avatars Robin and Corrin, however, Byleth has a set appearance and set voice actors, with the majority of their dialogue being from battle quotes instead of interactions with other characters.

Byleth is also the main protagonist of Three Houses, and assumes the role of a professor to one of the three titular houses at Garreg Mach Monastery in order to guide the students through day-to-day activities and help them improve their combat skills.

Byleth debuted in the Super Smash Bros. series as a playable character in Super Smash Bros. Ultimate as the fifth and final character of Fighters Pass Vol. 1.


In Three Houses, Byleth Eisner is the child of Jeralt Eisner, a former knight of the Church of Seiros, and Sitri, a nun of the Church of Seiros. Born in Imperial Year 1159, Byleth was in critical condition during birth until Archbishop Rhea took the Crest Stone of Flames from Sitri and implanted it into Byleth in order to save the newborn. Unbeknownst to Jeralt, Rhea also did this in order to try and reawaken the goddess Sothis. Although Byleth survives, this comes at the cost of Sitri's death and Byleth demonstrating abnormally minimal emotion as a child, as well as a complete lack of a heartbeat that seemingly has no effect on their health. Byleth does not recall much of their past, and Jeralt has told them very little of their childhood.

However, following a chance encounter where Byleth and Jeralt rescue Edelgard von Hresvelg, Dimitri Alexandre Blaiddyd, and Claude von Riegan from a group of bandits, they are brought back to Garreg Mach Monastery. Upon arriving, Jeralt is reinstated as the captain of the Knights of Seiros, and Byleth is enlisted as a professor for one of the Officers' Academy's three houses: the Black Eagles led by Edelgard, the Blue Lions led by Dimitri, and the Golden Deer led by Claude. Depending on the player's decision, the story plays out differently in part 2.

Sothis is a mysterious entity who appears in Byleth's dreams, and eventually manifests in real life, although Byleth is the only one that can see her. She has lost all of her memories except her name, but possesses significant power and demonstrates this by granting Byleth access to the Divine Pulse, an ability that allows Byleth to turn back time. Eventually, after Byleth is banished to a dark realm by a mysterious group called "those who slither in the dark", Sothis learns that she is a goddess upon rediscovering her past. She subsequently fuses with Byleth, thus granting them all of her power at the cost of ceasing to appear to them after that point, except in a few select circumstances. Sothis is also the source of Byleth's Crest, the Crest of Flames, which allows them to wield the Sword of the Creator effectively.

Regardless of which house they choose, at the end of Byleth's first year as a professor, Edelgard declares war on the Church of Seiros and Byleth is forced to take a side. An accident results in them falling into a coma for five years; once they awaken, they reunite with their house of choice (or the Church of Seiros, should they decide to side against Edelgard after choosing the Black Eagles) and assist their house leader in their goals: Edelgard in Crimson Flower to destroy the Church, Dimitri in Azure Moon to stop Edelgard, Claude in Verdant Wind to discover the truth behind the Crests and the Heroes' Relics, and The Church of Seiros in Silver Snow to stop Edelgard and Those Who Slither in the Dark.

What happens to Byleth depends on the route: in Silver Snow and Verdant Wind, they become the new leader of the United Kingdom of Fódlan; in Crimson Flower, Byleth devotes the rest of their life to ending Those Who Slither in the Dark and becomes a lifelong confidant to Edelgard; and in Azure Moon, Byleth becomes Archbishop after Rhea retires.

In Super Smash Bros. Ultimate[edit]

As a playable character[edit]

Main article: Byleth (SSBU)
Male and female Byleth, as they appear in Super Smash Bros. Ultimate.

Byleth appears as a newcomer in Super Smash Bros. Ultimate, with his inclusion being announced during a Mr. Sakurai Presents presentation on January 16, 2020.[1] He is the fifth and final DLC character of Fighters Pass Vol. 1, and was released on January 28, 2020.[1] Like his fellow Fire Emblem avatars Robin and Corrin, Byleth's female counterpart is also playable as an alternate character.

Super Smash Bros. creator Masahiro Sakurai played an early version of Fire Emblem: Three Houses in order to gain a better experience of how to develop Byleth for Ultimate.[1][2] Sakurai further elaborated that he did this to also ensure that Byleth's release was not delayed, and mentioned that he used this developmental process previously, in which he listed The Legend of Zelda: Breath of the Wild as an example.[1]

In a subsequent interview with Famitsu on February 5, 2020, Sakurai stated that he agreed with fan criticisms regarding the amount of both sword-wielding characters and Fire Emblem fighters in Ultimate. However, he reiterated that he was proceeding with a plan created for him by Nintendo and not picking his own favorites to be added to the roster.[2]

Sakurai said that freshness was the theme of Byleth's inclusion, as Three Houses was released only seven months after Ultimate. Due to Sakurai's aforementioned agreement with the criticism, he sought to have Byleth's moveset reference the branching storylines of Three Houses. As a result, he decided that Byleth would not only retain the Sword of the Creator, but also wield the house leaders' signature regalia: Aymr, Areadbhar, and Failnaught.[2]


Names in other languages[edit]

Language Name
Japan Japanese ベレト ♂ / ベレス ♀, Byleth
France French Byleth
Germany German Byleth
Spain Spanish Byleth
Italy Italian Byleth
China Chinese (Simplified) 贝雷特 ♂ / 贝雷丝 ♀, Byleth
Taiwan Chinese (Traditional) 貝雷特 ♂ / 貝雷絲 ♀, Byleth
South Korea Korean 벨레트 ♂ / 벨레스 ♀, Byleth
Netherlands Dutch Byleth
Russia Russian Байлет


  • With Fire Emblem: Three Houses being released in July 2019, Byleth is currently the most recently debuted fighter in Super Smash Bros. history.
  • Byleth is the first playable character whose system of origin is the Nintendo Switch. They would be succeeded by Min Min, Pyra, and Mythra.
    • Due to Byleth's appearance in Fire Emblem Heroes prior to Fire Emblem: Three Houses, Byleth is the only playable character in the series to technically have debuted in a mobile game.
  • It is actually impossible in Fire Emblem: Three Houses for Byleth to use all three Lords' signature weapons in one route. The reason for this is that Aymr is only obtainable in Crimson Flower, while both Failnaught and Areadbhar can be obtained in Azure Moon.
  • Byleth and Jigglypuff are the only characters with only one idle pose. However, the female variant has a different idle pose than the male one.
  • In Japanese, Byleth has two different names to refer to the male and female versions. Villager, Wii Fit Trainer, Inkling, Pokémon Trainer, and the Mii Fighters also share this trait.
    • Byleth is the only character with this distinction to have a given name rather than a generic title, and the only one to have this distinction in Japanese.
  • Byleth is the first and currently only Fire Emblem character who possesses a tether recovery.
  • Byleth, along with Robin and Corrin, shares the unique distinction of being Fire Emblem characters:
    • That have male and female variants, with their male counterparts being the default.
    • That have access to projectiles.
    • That are avatars in their respective home games.
  • Robin and Byleth are the only Fire Emblem characters whose down specials are not counterattacks.
    • Also like Robin, Byleth utilizes more than one weapon.
  • Byleth is one of two female characters with moves that have super armor, along with Wendy.
    • Coincidentally, they are both alternate costumes.
  • Byleth is the only playable Fire Emblem character who does not use a sharpening sound effect when charging a smash attack. However, this does not apply when charging a forward smash with a battering item.
  • Byleth is the third Fire Emblem character to be a DLC, with the first two being veteran Roy and newcomer Corrin in SSB4 respectively.
    • Additionally, Byleth is the second Fire Emblem newcomer to be DLC in their debut.
    • Coincidentally, all three of them debuted after the initial release of the Smash games they first appeared in. However, in Roy's case, he was present in Super Smash Bros. Melee before his proper debut in the Fire Emblem series, unlike the others who were added as DLC.
  • As with the other fighters with male and female variants, male and female Byleth have been established as separate entities, as both can be seen separately in Sora's trailer.