This is a list of fictional characters from the Japanese anime series Mobile Suit Gundam: The Witch from Mercury.

Main characters

The series's main protagonist. Suletta, a 17-year-old female Spacian and a second-year student in the piloting department representing Shin Sei Development Corporation, who transferred to the Asticassia School of Technology from Mercury. At Mercury, she was trained to be a mobile suit pilot from a young age and was later sent to the academy by her mother, Prospera Mercury, as part of a bigger revenge scheme against Delling Rembran, the CEO of the Benerit Group. She is shown to be a timid girl who has trouble communicating with people other than her mother; she also has a pathological need to be useful, both towards her housemates and her fiancée Miorine. Despite being a Spacian, she becomes affiliated with the Earth House. As the series progresses, Miorine becomes increasingly conspicuous and egregious on how Suletta is manipulated by Prospera, whose sway over her daughter is so great that she can command her to do anything from abandoning her dreams to committing cold-blooded murder. In the second season, she loses in a duel for the first time after a serious fight with mentally broken Guel and the intervention of Miorine, who betrays her in exchange for the opportunity to free Suletta from participating in her mother's cruel plans. Ultimately, the girl meets the spirit of the real Ericht in Aerial, where she reveals the secret of Suletta's origin as her clone and finally lost her connection with her and their mother. Following the events on Prospera's attack on Earth and the Dominicus raid on the academy, she fully found her resolve to correct things that she had done wrong. Following the Quiet Zero Incident, her body is starting to feel the side effects of the Data Storm infection done while piloting the Gundam Calibarn but she persevered further and unlocked the highest Permet Score ever done, stopping the Space Assembly League from firing the ILTS while giving time for Miorine to disband the Benerit Group and dissolve and sell all of its assets. 3 years after the incident, she is now married to Miorine while ongoing rehabilitation due to the strains on piloting the Gundam. Suletta pilots the XVX-016 Gundam Aerial, a GUND-Format mobile suit developed by the Shin Sei Development Corporation on Mercury. Its main feature are the "Bit Staves", remote controlled drones that can be used both for offense and defense. It is later upgraded into the XVX-016RN Gundam Aerial Rebuild, which has extra thrusters for improved mobility as well as a new rifle that can combine with the Bit Staves to form a large cannon. Following the reveal of Prospera's true intentions and the discovery that Aerial contains the mind and biological code of Ericht Samaya, her formerly deceased eldest daughter, the Space Assembly League assigned Suletta to pilot the X-EX01 Gundam Calibarn, a prototype GUND-Format mobile suit developed by the Vanadis Institute and Ochs-Earth and was confiscated by the organization following the incident 21 years ago. People in the institute described the mobile suit as a "monster" due to its lack of Permet Code filtering needed to weather out data storms. It uses a broom-like propulsion unit that doubles as a beam rifle.

An attractive and academically distinguished second-year female Spacian student in the management strategy department. Miorine is the only daughter of Delling Rembran, the president of the Benerit Group and chairman of the school's board. Her late mother was a botanist, and Miorine kept a small greenhouse on school grounds in her memory. She has a strong rebellious feeling towards her father, who barely acknowledges her beyond her status as his family. Following the Plant Quetta incident, she became the temporarily CEO of the Benerit Group while her father is recovering from his wounds. After becoming engaged to Suletta when the latter wins the Holder title from Guel Jeturk, Miorine slowly but surely grows closer to her new fiancée, as they help each other become stronger and learn not to run away from their problems. Miorine even founds the Gund-Arm Inc. company for Suletta's sake, as a way to keep her Gundam Aerial safe from the Benerit Group's laws which outlaw Gundams. However, after discovering firsthand just how much Suletta was manipulated by her mother, Miorine is coerced into a deal with the latter to keep her from using Suletta as a pawn in her revenge scheme; this deal requires Miorine and Guel to cruelly wrest away both Aerial and the Holder title from Suletta, which they do with heavy hearts. However after Prospera's attack on Earth, she soon realized she is being used by her to advance her plans on Quiet Zero, blaming herself on her lack of reason. At the end of the Quiet Zero Incident, she announced to the Space Assembly League that she will be disbanding the Benerit Group and all of its assets were both dissolved and sold in order to end the conflict between Spacians and Earthians.

Recurring characters Asticassia School of Technology A higher-education facility run by the Benerit Group. It is made up of specialized piloting, mechanical, and management strategy departments. A recommendation from a company affiliated with the Benerit Group is a prerequisite for admission

An heir to Jeturk Heavy Machinery, one of the group's three branches, and a third-year student in the piloting department. First appearing in story as an arrogant, morbidly impulsive and abusive egoist, Guel subsequently endures a series of humiliations and tragedies that turn him into a sensitive and compassionate individual. As the ace pilot of Jeturk House, he had absolute confidence in his own skills, including the rank of "Holder" to signify his status as the top duelist at the school, which makes him Miorine's fiancé, a position he loses to Suletta after he is defeated by her. After knowing more about Suletta, Guel becomes infatuated with her, to the point of asking her in marriage. Due to his repeated defeats, he was kicked out of the Jeturk House, now living solely away from the group. He soon left the academy and joined a private company as a worker under the pseudonym of "Bob" until he was captured by the Dawn of Fold during the Plant Quetta incident and was held hostage. It was only until after the Benerit Group's raid on the Dawn of Fold hideout that he's allowed to go free, with his priority is to go back to space to redeem himself and save his late father's company, taking over as CEO. Upon his return, he along with Miorine devise a plan to free Suletta from her mother's control. This culminates in a Duel, where he wins, albeit heavily scarred and his Mobile Suit damaged. He later accompanies Miorine to Earth for negotiations with the Earthians, where he reunites with Sedo, an orphan whom he befriended during his time as a prisoner, who discloses incriminating evidence on Shaddiq's role in the actions of the Dawn of Fold. Enraged, he along with Kenanji return to space, where he fights against a ruthless Shaddiq, narrowly defeating him in the process, while losing the Darilbalde in the process. When escorting the Dominicus team to Quiet Zero, he is ambushed by a vengeful Lauda, ending in his Dilanza being stabbed in the reactor. Guel narrowly avoids death thanks to the quick thinking of Felsi Rollo, who used a immobilizing gel gun to stop the Mobile Suit from exploding. Three years later, Guel remains the CEO of the Jeturk Company, with the original Elan Ceres as his subordinate. Guel initially pilots the MD-0032G Guel's Dilanza, a heavily modified Dilanza developed by the Jeturk Heavy Machinery and used primarily for close combat. He later switches to the more powerful MD-0064 Darilbalde, also focusing on close combat with the aid of an experimental Artificial intelligence system. After its debut duel with the Aerial, it is rebuilt with larger shields, a beam firearm, as well as another pair of Ambika drones.

The top pilot backed by Peil Technologies, one of the group's three branches and a third-year student in the piloting department. In reality, Elan's attendance in school and participation in duels is secretly performed by Enhanced Persons, unregistered body doubles created to handle the stresses of the GUND-Format technology. These Enhanced Persons are all modeled in the image of the original Elan Ceres, the next CEO selected by the Peil Grade, an Artificial Intelligence grading system that automatically selects the most capable leader. He oversees the body doubles in his behalf and all of them share the same pseudonym, due to the original Elan Ceres' abysmal piloting skills. The first enhanced person, code-named "Number 4", is a taciturn and solitary person, who does not open his heart to anyone in school. He has an interest in Suletta due to her relation to the GUND Format tech. After his defeat against her, he was killed by Peil Technologies for failing to secure the Aerial. He was replaced by "Number 5", another double who was ordered by Peil Technologies to seduce Suletta in order to gain access to the Aerial. Unlike Number 4, he is more outgoing and talkative, but more manipulative, even coming across as rather "frightening" to Suletta. As he became more and more desperate in securing the Aerial, he attempts to hijack it, only to be met with a painful data storm, along with the digitized ghost of Ericht kicking him out of the cockpit. This culminates in Number 5 physically assaulting Suletta, only to be warded off by Guel Jeturk. He was fully disowned by Peil Technologies afterwards and blackmailed Grassely House to hide him due to his knowledge of the Rumble Ring Incident, along with Norea and Nika. He later falls in love with Norea, which is tragically cut short by her death. Following this, "Number 5" decided to ally himself with Suletta, apologizing in the process for his previous behavior. During the Quiet Zero Incident, he accompanies Miorine and the rest of Earth House in their infiltration of the fortress. He later defends his former handler, Belmeria, by shooting Prospera multiple times. Three years following Norea's death, he began traveling around Earth to find the various places that she drew in her book. All of the Elan clones pilot the FP/A-77 Gundam Pharact, a long-ranged sniper unit developed by Peil Technologies using GUND-Format technology that uses Corax GUND-BITs that stun mobile suits. The fifth Elan later piloted the EDM-GA-01 Gundam Lfrith Ur during the Dominicus Raid to stop Norea from destroying the academy but to no avail.

Real name , Shaddiq is an adopted child of the CEO of Grassley Defense Systems, one of the group's three branches who leads Grassley House. Although still a third-year student in the piloting department, Shaddiq has shown his skills in business and is a candidate for next generation executive. He was originally a Half-Earthian until he was taken in by Sarius. Later in the series, it is revealed he orchestrated the attacks on both Plant Quetta and the Rumble Ring, the later allowing him to elevate him to CEO position of the company while keeping his adopted father hostage deep inside Grassley House. He is soon captured by Dominicus alongside other members of the Grassley House in a heated battle against Guel. He pilots the CFK-029 Michaelis, a mobile suit developed by Grassley Defense Systems as a successor to the Beguir-Beu equipped with the Beam Bracer, which uses Non-Kinetic Efectors to disable GUND-Format type mobile suits with a Permet score of 3 or lower. In the later episodes, the unit is equipped with a wire-guided lance for close combat.