"Hero" is a collective title given to the protagonists of the Dragon Quest series, as their name (and in some cases, gender) is chosen by the player. The Hero is typically the most well-rounded character accessible to the player, skilled with both swordplay and magic. They typically have a wide range of equipment available to them, including the most powerful weapons and armor. As a result, the Hero is generally the character that the player will use the most throughout their quest. Additionally, very few of the Heroes have official names.
The Hero is given the title "Scion of Erdrick" (ロトの血を引く者, Scion of Loto) in Theatrhythm Dragon Quest, Dragon Quest: Monster Battle Road and Dragon Quest Rivals.
His name in the Japanese CD Theater audio drama and novelization is Alef (アレフ). Alef is borrowed from Alefgard (アレフガルド), the geographical name of the game's world. The Japanese Wii release of the game has the Hero's name as Solo (ソロ), a name which was also used for the Hero of Dragon Quest IV. He is uncommonly referred to as simply Erdrick (ロト, Loto), though the protagonist of Dragon Quest III is more commonly associated with this title.
The Scion of Erdrick does not have much character, simply being a stoic, silent hero for the player to assume the role of. He had an audience with the king of Alefgard, left for a dangerous journey and rescued Princess Gwaelin, defeating the Dragonlord and bringing the world to peace. Dragon Quest Builders, which takes place in an alternate timeline where the Hero instead joins forces with the Dragonlord, depicts him as a crazed villain who resides in a small fortress, believing himself to be the king of the world.
The Hero is known as the "Prince of Midenhall" (ローレシアの王子, Prince of Lorasia), a title also used in Theatrhythm Dragon Quest and Dragon Quest: Monster Battle Road. Midenhall was established by the Scion of Erdrick, making the Prince a direct descendant to the original Hero.
His name in the audio drama and novelizations is Allen (アレン). The manual of the Japanese Wii version of Dragon Quest II gives his name as Loran (ロラン). Loran is borrowed from Lorasia (ローレシア), the Japanese name for Midenhall.
Similar to the Dragon Quest Hero, the Prince does not have much personality, but is shown through his actions to be incredibly strong-willed and eager to defend his kingdom from the villainous cult leader, Hargon. He is joined by his cousins, the Prince of Cannock and the Princess of Moonbrooke, in his quest. Unlike most other Heroes, he does not possess any magic capabilities.
The Hero is given the title "Legendary Hero" (伝説の勇者) in Theatrhythm Dragon Quest and Dragon Quest: Monster Battle Road; in other instances, such as promotional material, their name is Arus (アルス, occasionally romanized as Arusu). However, at the end of their adventure in Dragon Quest III, the Hero receives the title of Erdrick (ロト, Loto), which becomes their most widely known moniker. They are the first Hero to have male and female variations, though neither choice affects the story in a major way.
Erdrick is a fabled Hero in the lore of the Dragon Quest universe, known for their bravery in saving Alefgard and its surrounding lands from both the Archfiend Baramos and the Master Archfiend Zoma. They are the ancestor of the Heroes from Dragon Quest and, by extension, Dragon Quest II. These characters belong to a group known as the "Descendants of Erdrick" (ロトの子孫たち, Descendants of Loto).
The legendary armor the Hero of the game wears at a later point, which goes on to reappear in several other games in the series, serves as the inspiration for a downloadable Mii Swordfighter costume, under the name "Erdrick Outfit".
Like the previous installment, the player can chose the gender of the protagonist. The default names for the male and female Heroes in-game are Solo (ソロ) and Sofia (ソフィア), respectively; these names are also used for their appearances in later games. In the audio drama, the Hero is named Ray (レイ), and in the official novelizations, his name is Yuuril (ユーリル).
From a young age, the Hero was prophesied to defeat the Demons and restore peace to the world. They were raised by foster parents in a hidden village, protected from the outside world until they became an adult. Following a failed assassination attempt led by Psaro the Manslayer, the 18-year-old Hero finds themselves alone in a ransacked village. They soon set out on a quest to discover their true identity and fulfill the prophecy.
The Hero is given the title "Legendary Monster Tamer" (伝説の魔物使い) in Theatrhythm Dragon Quest and Dragon Quest: Monster Battle Road.
The default name for the Hero in-game in Japanese is Abel (アベル). The Hero's father initially suggests the name Madason (トンヌラ, Tonnura), but soon changes his mind (though, if the player picks the name "Madason" to begin with, the father will instead suggest "Erdrick," before changing his mind); regardless, the name is commonly used by fans to distinguish him. In other related material—the audio drama, the official novelizations, and Dragon Quest: Your Story, a computer-animated film based on Dragon Quest V—he is named Luca (リュカ).
Notably, this character is not the chosen Legendary Hero; rather, it is his union with his future bride that involves him with the prophecy to defeat the villainous Order of Zugzwang. Nonetheless, he possesses extraordinary bravery and a captivating presence that often convinces monsters to join his side. He also uniquely wields a staff as his signature weapon, though he can also wield swords as the other Heroes do.
The Hero is known as the "Prince of Somnia" (レイドック王子, Reidock Prince).
He has many official names in Japanese. His default name in the games is Reck (レック), which is derived from the Japanese name of his kingdom, Reidock (レイドック). In the audio drama, his name is Will (ウィル); in the manga, his name is Botts (ボッツ); in the novelization, his name is Iza (イザ).
Upon awakening from a strange dream where he conflicts with an evil Dread King, this amnesiac and seemingly-average boy soon discovers he is part of a larger prophecy. His adventure through the kingdom of Somnia sees him exploring the parallel Dream World, meeting familiar companions, and ultimately coming to terms with his true identity.
For the English release of the Nintendo 3DS version and in English promotional material, the Hero's default name is Auster. In the Japanese version of the games and the official manga, the Hero's default name is Arus (アルス), the same as the Dragon Quest III protagonist.
The Hero is much pluckier than his counterparts; he is the young son of a respected fisherman, and something of a doormat, allowing others to easily take advantage of him. When events transpire that transport him and his companions into the distant past, they quest to defeat the Demon King Orgodemir and restore a broken timeline.
The Hero is an amnesiac who lives in Trodain Castle, serving as the captain of its guard upon becoming an adult. He is always accompanied by a small mouse-like creature named Munchie, who resides in his jacket pocket. After the villainous court jester Dhoulmagus sets a curse on the land of Trodain, the unaffected Hero and his companions set out to defeat him, ultimately learning about his origins and the true nature of the curse.
The Hero is commonly referred to as Nine (ナイン).
The Hero is a member of the Celestrians, a race of angelic guardian deities that watch over humanity, perform good deeds, and tend to Yggdrasil—the world tree that allows for Celestrians to ascend to the Realms of the Almighty. However, disaster soon strikes, causing the Hero to fall to Earth and become a regular, mortal human. With a party of other travelers, the Hero roams the Earth to assist those in need and eventually return home.
The Hero is commonly referred to as X (エックス).
Both the Hero and their sibling live in the small village of Etene. During a raid on the village, said sibling is kidnapped by monsters, and the Hero is killed in an explosion. The Hero's soul is then revived as one of five non-human species, launching a nontraditional quest in the world of Astordia.
The Hero is commonly referred to as the Luminary (勇者, Hero) or Eleven (イレブン).
The Luminary is said to be the reincarnation of a legendary warrior named Erdwin who defeated the Dark One. On his sixteenth birthday, he participates in a coming-of-age ceremony in his hometown of Cobblestone with his friend Gemma, wherein he learns of his destiny and sets out on a journey to fulfill it. However, he conflicts with the Kingdom of Helidor, as its king instead apparently believes he is the Darkspawn, an entity doomed to spread darkness across the world.
As a playable character
Main article: Hero (SSBU)
The Hero appears as a newcomer in Super Smash Bros. Ultimate, with his and Banjo & Kazooie's inclusions being announced during the E3 2019 Nintendo Direct on June 11, 2019. He is the second DLC character of Fighters Pass Vol. 1, and was released on July 30th, 2019.
According to a Famitsu column by Super Smash Bros. series creator Masahiro Sakurai, there are restrictions from Square Enix regarding which Dragon Quest protagonists can encounter each other. However, Super Smash Bros. Ultimate was given special exception in order to have the different Heroes as alternate character costumes. Eight's addition as an alternate character, in particular, was due to requests from Western fans for the character.. Additionally, the Luminary was added and made the default Hero due to wanting to promote the then-upcoming Dragon Quest XI S coming out on the Switch. In a later interview with series creator Yuji Horii, it is stated that the team did toss around the idea of adding the series mascot, Slime, but they realized they apparently had limited moveset potential, so they went with Hero. Originally only two Heroes were planned (Luminary and Erdrick), but it was decided this was too few to represent the series at large, so the number was doubled to four. The Hero from Dragon Quest V was also considered, but he was ultimately decided against due to his default weapon being a staff instead of a sword and instead reduced to a cameo role in the Hero's Final Smash and referenced as an alternate costume for Erdrick. 
When the Hero originally began development, he was planned to be silent, similar to previous Dragon Quest protagonists. However, with the addition of voice acting in the Japanese version of Dragon Quest XI S (as the localized version of the original Dragon Quest XI had voice acting from the beginning), plans were changed and voices for all four Heroes were added. In addition to being the first game with official voice acting for Erdrick, Solo and Eight, Sakurai shared some interesting pieces of trivia about each of the Heroes' voice actors and their recording sessions:
As a costume
The Erdrick Equipment is a paid downloadable Mii Costume. Although Erdrick's Helment can be worn by any type of Mii Fighter, only Mii Swordfighters can wear Erdrick's Armor. While worn, the Mii Swordfighter uses the Sword of Kings instead of their standard sword.
Names in other languages