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Sugo Asurada/Winners/Grand Prix/GIO Grand Prix
The main character of the series (aside from SIN). The son of Hiroyuki Kazami, the designer and programmer of Asurada, Hayato becomes the driver of the car while delivering to the Fujioka track when the machine was attacked. Although he manages to bring the car to the Sugo team safely, his driving data is locked into the machine's computer, which leaves him no choice but to be the main driver for the team. Shortly after obtaining the "Super License" in the All-Japan Grand Prix, Hayato becomes the youngest CF racer ever.In the main series, Hayato has the most World Championships with 4. He can go Zero and has mastered the techniques Inertial Drift and Lifting Turn, and once he uses them, these makes him almost impossible to be defeated.
- A Boy and His X: A Boy and His AI Supercomputer-Equipped Race Car, who later becomes a man.
- Accidental Athlete: After rescuing Asurada from thieves, Team Sugo realizes his potential and performs surprisingly well in races.
- Broken Pedestal: In the TV series, he looks up to Osamu as a Big Brother Mentor, but in Double-One he finds out that Osamu re-enters Cyber Formula to declare Hayato as his enemy and he easily defeats him and the other racers in the British Grand Prix. He was really shocked and angered by his actions.
- Rebuilt Pedestal: After he finds out the truth of why Osamu does so and regains his respect for him at the end.
- Brought to You by the Letter "S": His Asurada in later models has the letter "S" in them, which stands for Sugo, the team he is in, and his racing suit in the OVAs has the Sugo logo, which also has the "S" on them.
- Brown Eyes: Which comes in line with his polite and trusting nature.
- Car Fu: He hits Smith's helicopter with his Asurada GSX, which allows Bootsvorz to do the same thing.
- Childhood Friend Romance: With Asuka, which grows into engagement and finally marriage at the final ending of SIN.
- Defeat Means Friendship: He makes friends with racers after a few or more races with them.
- Determinator: One of his most defining traits. For an example, in EP 26 of TV series, his car has engine trouble but he manages to get into the finish line at the last second of the race and he wins the race.
- Die or Fly: He learned his Lifting Turn technique while in this state in Saga and also in 11, as a result, he learned the Inertial Drift.
- Disappeared Dad: His father Hiroyuki, the person who created the AI supercomputer for his car, was killed by Smith, who wanted to use Asurada as a weapon of mass destruction.
- Distressed Dude: He is held prisoner in the hotel room in episode 7 of SAGA.
- Falling into the Cockpit: How he got into CF: He was on his way to deliver Asurada GSX to the race track when the machine was attacked and he drove the machine into the racetrack.
- Happily Married: With Asuka at the end of SIN.
- He's Back: More than once. Like in EP 3 of ZERO, he returns to racing to overcome the "ghost" of the Zero Zone. Asuka wasn't too happy with this, though, and she broke off her engagement with him. She later made it up with Hayato after the misunderstanding and helped him to overcome his fear.
- The Hero: For most of the series until Kaga takes up the role in SIN.
- Kid Hero: In the TV series, as he was 14 at the time.
- Heroic B.S.O.D.: More than a few times, but especially in episode 22 of the TV series when he learned that his father, the man who made Asurada, was dead.
- Heterosexual Life-Partners: With Kaga, until the beginning of SIN when their rivalry comes to a boil. They were already rivals in ZERO, but they remained really good friends. Lampshaded at the final episode of SIN when he sees Kaga with his new haircut and saying that it's not the Kaga he knew.
- He also has this type of relationship with Ohtomo in the TV series.
- Hot-Blooded: Albeit a more toned down version of the trope. Being a Determinator also helps.
- Improbable Age: Not only he made his racing debut at age 14, he won the championship in that age as well in his debut. Subverted, as in the beginning, he had almost no driving skill.
- Invincible Hero: Only badly adjusted machines slow him down by SIN, yet he gives Kaga one hell of a trouble. Plays even straighter in the PS1 game where Seiichiro only beats him at the last second, blowing up his machine in the process.
- Kirk Summation: To Henri in EP 7 of Zero, he talks to Henri, and then asks him what he's racing for.
- Locked Out of the Loop: At first, he doesn't know why his father didn't contact him. Then his mother tells him the truth about what really happened...
- Magnetic Hero: He earns the respect of other racers, throughout the series. He even lists his specialty as "Making friends with anyone".
- My Hero Zero: He uses the Zero Zone, His first attempt resulted in him being nearly killed, and retiring for a short time, but then he came back to overcome his fear of using the skill with help from Asuka. And in the last 2 OVAs, he drives the v-Asurada AKF-0.
- Naïve Newcomer: At the beginning of the TV series, since he has no experience in car racing.
- Nice Guy: Most of the time.
- No-One Could Survive That: His accident in the first episode of ZERO. The TV series also has it. After he got a Heroic B.S.O.D., he pulled a Nitro Boost and the GSX crashed into the trees, tearing the whole machine apart. The driver cockpit's still all right, and he wasn't physically hurt that much.
- Official Couple: Asuka and him, which ends in marriage at the end of the series.
- Power Strain Blackout: In the TV series, he nearly collapses in the final lap of the last race from the pressure of the g-forces.
- Red Baron: "Ushiwakamaru",note "The Young Emperor of the Circuit"
- Red Oni, Blue Oni: He and Kaga, with Hayato as the red and Kaga as the blue.
- The Rival: To Shinjyo and later Randoll, Osamu and eventually Kaga.
- Sensitive Guy and Manly Man: The sensitive guy to Shinjyo's manly man. He and Ohtomo plays the sensitive guys to Shinjyo's manly man.
- Shonen Hair: It gets slightly bigger in the last 2 OVAs.
- Super Mode: The Zero Realm, in which he enters a zen-like state once he gets a hold of it.
- Technician vs. Performer: The performer to Randoll and Shinjyo's technicians.
- 10-Minute Retirement: In the TV series, he runs away from his team after the disastrous first race in the American Grand Prix and in ZERO after the accident and when he is haunted by the Zero Realm.
- Think Nothing of It: In episode 25 of the TV series, he said that he just trusted in Asurada in a reception when talked about him saving Asuka, Osamu and everyone else in a plane when the plane couldn't lower the wheel.
- Took a Level in Badass: Once he learns more of his driving skills, he becomes a full-fledged racer.
- Took a Level in Jerkass: In SAGA, when he tries to get out of his slump. He regains his original personality towards the end of episode 4.
- Unskilled, but Strong: He's less experienced in auto racing than most of his colleagues, yet he performs brilliantly in races, sometimes winning them through determination.
- Vomit Discretion Shot: In episode 3 of Double One, after he drove recklessly on the test track as he's put into Asuka's arms and then he fell down as he threw up.
- What the Hell, Hero?: He finds himself at the receiving end of this a few times, especially in EP 12 of the TV series.
Voiced by: Kotono Mitsuishi
Hayato's childhood friend, she is the daughter of Kojiro Sugo, the president of Sugo Corporation and former CF racer. She serves as the team's acting manager and race queen. And while their relationship is initially like that of siblings, they eventually fall in love and she later became his fiancée in Zero. At the end of Zero, she goes to Columbia University to study to become a doctor so she can help Hayato and others when they are in need.For many times, she has been Hayato's main emotional support, which helps him to win in some situations, but at the same time, she is worried about his safety, as racing is a very dangerous profession. In 11, she is very concerned for Hayato and her brother.
- Bare Your Midriff: In the first 2 OVAs, she wears a two-piece campaign girl outfit.
- Big "NO!": She lets one out in the first episode of Zero when she saw Hayato lying down on the ground, with his car Asurada totally wrecked after it crashed down when it went off the track banking at the fifth race in the English Grand Prix.
- Big Sister Instinct: To Hayato in some ways, for most of the TV series. In one episode, she calls Randoll out for insulting Hayato when they first met.
- Blonde, Brunette, Redhead: The brunette to Clair's blonde and Miki's redhead.
- Childhood Friend Romance: With Hayato, as if it isn't obvious. She ends up marrying him at the end of the final OVA.
- Curtains Match the Window: She has brown hair and her eyes are also brown as well.
- Drives Like Crazy: As seen in episode 7 of ZERO, she couldn't get her eyes focused on the road.
- Expository Hairstyle Change: This happens to her in episode 5 of Zero. Her hair grew a bit longer in Saga and Sin. This image◊ shows side by side comparisons of her by 7 years. Notice the change in the art style as well.
- Genki Girl: In the TV series and first 2 OVAs, she appears to be cheerful and at times cheer for Hayato in the TV series.
- Girliness Upgrade: In the TV series, she was a Tsundere-ish girl, but she begins to wear more dresses and looks more woman-like in the OVAS.
- Get A Hold Of Yourself Man: She gives this to Hayato in EP 35 of the TV series after he gets hysterical over trying to destroy Asurada for causing his friend Johji to be injured and retire from Cyber Formula.
- Hair Decorations: In the earlier series, she sports a headband.
- Happily Married: With Hayato at the end of SIN.
- Hospital Hottie: A medical student at Columbia University. In fact, she identifies the name of the medicine which Phill takes to supress the responses of Al-Zard's high speed.
- Lethal Chef: She once made parsley and durian juice for Hayato and when he doesn't want it, she drank it instead and she fainted. In the 2nd radio drama cassette, she cooked and made some food for Hayato's birthday party. This time, Hayato ate the food anyway and the cooking was so bad that he collapsed and was sent to the hospital.
- Long Hair Is Feminine: In the first 3 series, she has hair that reaches her waist.
- Memento MacGuffin: Her pendant, which has a photo of her brother, and the photo also serves as a clue on the identity of Shoemach. That pendant later has a photo of her, Hayato and Osamu. In Double-One, however, she threw her pendant at Osamu after he defeated Hayato in the English race. Hayato later gave it back to her at the end.
- Nice Girl: When not in tsun-tsun mode (in the TV series), she is a really kind and gentle girl in general.
- Nice Hat: In races, she wears a sun visor with plastic hearts on each side (in the first 2 series).
- Official Couple: Hayato and her. She marries him at the end of SIN.
- Pit Girls: She was one at the beginning of the series as well as a general agent of the Sugo Team, until her role is filled by Megumi and Satsuki.
- Say My Name: "HAYAATOOOOOO!" (in the TV series)
- Shower Scene / Furo Scene: The shower scene episode 32 in the TV series and episode 4 of SAGA, and the furo scene Episode 5 of 11.
- Sibling Yin-Yang: She and Osamu. She's the cheerful and energetic sibling of the two.
- Single Woman Seeks Good Man: Hayato may be a bit temperamental at times, but he's still a really nice guy.
- Stocking Filler: She wears those with her one-piece race queen outfit in the TV series.
- Take Back Your Gift: In the aforementioned event above about him breaking his promise not to race again. They make it up later.
- Tareme Eyes: In contrast to Miki's Tsurime.
- Tender Tears: Due to her caring nature and concern for others, she sheds these more than once.
- Tomboy and Girly Girl: The girly girl (with Clair) to Miki's tomboy.
- Tsundere: Type Sweet, with heavy emphasis on the "dere". Sweet, kind and caring unless someone/something gets her angry. It's completely toned down in the OVAs, however.
Voiced by: Hiro Yuki
Originally a rookie in the Theodolite T.T. team, Henri later joins Sugo Asurada in the following year, replacing Hayato while he was recuperating from his injuries. He keeps a sweet and cheerful personality in front of the racers, which is a merely a facade of his scheming and manipulative self. For some reason, he has a deep hatred for Hayato, but Hayato doesn't know why he hates him so much...
- Arch-Enemy: Of Hayato in Zero (albeit one-sided), Leon in the last 2 OVAs.
- Bitch in Sheep's Clothing: In Zero, he may looked like a sweet and cheerful rookie, but he's actually a vengeful person who wanted to make Hayato's (and the other racers') lives miserable.
- Cute and Psycho: He may look cute and innocent, but has a homicidal obsession with Hayato. It mellows out at the end of Zero.
- French Jerk: An extreme version in Zero, although he isn't arrogant. He becomes less of a jerk in the final 2 OVAs although he still is somewhat a jerk.
- Freudian Excuse: Probably the reason he holds a big grudge against Hayato in most of Zero: He was pushed by his father to be the best in racing ever since he was little so he can be the youngest champion in the history of Cyber Formula, but when Hayato got that title first, his father started drinking and then abandoned him.
- Manipulative Bastard: In Zero. Highlighted in episode 5 when he used Shinjyo, Heinel and Gudelhian to make them believe that Hayato was using reckless racing tactics to get ahead.
- Parental Abandonment: His mother passed away when he was little, and his father started to ignore him and hitting the bottle after Hayato takes the title of being the youngest champion ever instead of him. Thus begins his obsession with ruining Hayato's life for taking his dream away.
- Skunk Stripe: He has silver hair with a red streak on the strand of his bangs.
- Stage Dad: His father pushes Henri to be the best in racing and then ignored him after Hayato wins his first championship. It helps that he's a former racer.
- Used to Be a Sweet Kid: In a flashback he is seen as a happy child who wants to please his father. Then Hayato's championship left him embittered towards Hayato.
- "Well Done, Son!" Guy: He tries hard to impress his father. It doesn't work out at all.
- White Hair, Black Heart: It gets toned down in the last 2 OVAs.
- Wounded Gazelle Gambit: Is fond of doing this to get his way, which is more apparent in episode 5 of ZERO, but it fails in the end.
Voiced by: Akira Ishida (Road to the Infinity games only)
When he was young, he saw Hayato's first World Championship win in the 10th GP finals. Amazed by Hayato's racing skill and strong will, he aspires to be a racer himself. In 2020, he enters the Cyber Formula series as a test driver of Sugo Winners, and from there he was given the v-Asurada AKF-0, which has the same chassis as Hayato's Asurada, but it has a different Cyber System called Nemesis. In the following year, he is one of the participants of a special event called the Extreme Speed series.
- Alliterative Name: Seiichiro Shiba.
- Ascended Fanboy: He was a fan of Hayato when he was young and watch him win the finals of the 10th GP, and he became a racer in Sugo Winners.
- Beta Couple: Rena and him. They end up together at the end of the game.
- Official Couple: He and Rena are these in their first game in the game's ending.
- Canon Immigrant: He first appeared in the PS1 game, and was later put into the final closing credits of Sin.
- Childhood Friend Romance: With Rena, who are shown to be together in SIN's ending.
- Featureless Protagonist: Averted. He has a physical appearance, personality, and story, although the player can name the character, with Seiichiro Shiba being the default (in the PS1 game) and canon name.
- My Hero Zero: His Nemesis machine's number is "0", and he's the protagonist in his game.
The manager of the Sugo Asurada team. He is close friends with Hiroyuki Kazami and Kojiro Sugo. He is called "Oyaji" by Hayato, as Kurumada treats Hayato as if he is his own son.
- Cool Old Guy: A hard-working and competent team manager.
- Get A Hold Of Yourself Man: To Miki in episode 9 of the TV series. Does this to Hayato too, multiple times, although verbally.
- It's All My Fault: In ZERO, he blamed himself for causing Hayato's accident in the fifth race, so much so that he retired briefly from his team.
- Japanese Pronouns: "Washi", used mainly by elderly men.
- Memento MacGuffin: The loupe given by Gen-san, from his youth, which helps Pei to find the cause of the under-steer caused on Hayato's car. And in his backstory, he uses the loupe to find out what caused his friend's car to crash in a test drive.
- Put on a Bus: Hasn't been seen since the end of Zero.
- Reasonable Authority Figure: He is very strict as a manager, but he's also the voice of reason of the team.
- Team Dad: To the Sugo Asurada team.
- Token Adult: He was also this for the Sugo team before his retirement.
Voiced by: Shinobu Adachi
The chief mechanic of Sugo Asurada, she's in charge of maintenance of the first 3 Asurada incarnations. She initially dislikes Shinjyo because of his attitude towards mechanics, but she later falls for him after he becomes a better person and is impressed by his will to fight.
- Beta Couple: She and Shinjyo, which was more or less established in ZERO.
- Blonde, Brunette, Redhead: The redhead (well, reddish-brown) to Clair's blonde and Asuka's brunette.
- In-Series Nickname: Chief, short for chief mechanic.
- Jackie Robinson Story: She wanted to be the top car mechanic in the world and she applied to many racing teams, but they say that either she is too young or don't need a female mechanic, and she was disappointed. Then she listened to a song called "Atarimae no Kiseiki" (which is the insert song of EP 17 of TV series), which brought her spirits back up and eventually went to the Sugo team.
- Nice Hat: She wears a cap with her name on it.
- Morality Pet: She helps keeping Shinjyo's emotions in check.
- Paper-Thin Disguise: In episode 6 of Saga, when she comes to Union Savior.
- Shorttank: She mainly wears shirts and shorts and she likes rock music, but doesn't mind dresses.
- Shower Scene / Shower of Angst: In episode 3 of 11, when she thinks that she's not qualified to be chief mechanic.
- Tomboy and Girly Girl: The tomboy to Asuka and Clair's girly girls.
- Tsurime Eyes: Contrast to Asuka's Tareme.
- Wrench Wench: The chief mechanic of three of her teams.
Ryohei Sumi AKA Pei
Voiced by: Tatsuya Matsuda (TV series-ZERO), Naoki Tatsuta (SAGA-SIN)
A mechanic of the Sugo team, he is Miki's energetic apprentice. Originally a go-kart racer, he quit the sport after finding out that he has a rare blood type that made it extremely difficult to find someone of his type if he gets injured.
- AB Negative: Although it is not explained in-series, it is heavily implied that he has this, due to him having a special kind of blood type and played a plot point in one episode of the TV series. It is also this very kind of blood type that made him give up auto racing due to safety reasons.
- Ill Boy: In a filler episode, although he eventually recovered.
- In-Series Nickname: Pei, which is short for his real name.
- Only Known by Their Nickname: He is rarely referred to by his real name Ryohei.
- Older Than They Look: He is shorter than Hayato, but he is a year older than him.
- Tragic Dream: He wanted to be an auto racer, but he has a special blood type mentioned above that made that dream impossible to achieve because if he gets injured, he loses a lot of blood and it's difficult to find a blood of his type to use transfusion.
Voiced by: Hiroshi Takemura
The Sugo team's computer mechanic, he makes sure that Asurada's computer data is running good at all times.
- Demoted to Extra: Originally an important character to the Sugo Team, he gets less and less screentime in the OVAs, until he doesn't show up at all in SIN.
- Smart People Wear Glasses: Which comes in line as a computer expert on the team.
- Trademark Favorite Food: Sandwiches of any kind, and he makes anything out of sandwiches.
- The Smart Guy: The computer mechanic of his team.
Voiced by: Yumi ToumaThe machine designer for the Sugo Asurada team. She was an assistant of Hiroyuki Kazami's before becoming a machine designer herself. She is often seen together with Osamu.
- Beta Couple: Osamu and her, who are a couple before any of the others in the series.
- Blonde, Brunette, Redhead: The blonde to Asuka's brunette and Miki's redhead.
- Bunny-Ears Lawyer: Her mannerism is a bit...odd, but she is a really good machine designer.
- Hair of Gold, Heart of Gold: Her hair is blonde, she is beautiful, a nice girl and is feminine.
- Remember the New Guy: She's first introduced at end of the first episode of Double-One, but she's been working with Hayato's father when they were working for Missing Link.
- Spell My Name with an "S": Is it Clair or Claire?
- Theme Naming: Her last name is most likely taken from the eponymous programming language.
- Tomboy and Girly Girl: The girly girl (with Asuka) to Miki's tomboy.
- Umbrella of Togetherness: With Osamu in the first episode of 11.
Voiced by: Tomoko Ishimura (as Mifuyu Hiiragi)The mascot girl of Sugo Grand Prix, she is a fan of Hayato and has a huge crush on him.
Voiced by: Yuri AmanoThe Sugo Grand Prix mascot girl and Megumi's partner.
Voiced by: Kazuya IchijoA staff member of GIO Motors, he joins the Sugo team in SIN.
- Kansai Regional Accent: He is seen speaking in this manner.
Voiced by: Kazuhiko Kishino, Kosuke Meguro (teens)The president of the automotive company Sugo Corporation, and Osamu and Asuka's father. In his youth he was a CF racer, and he worked together with Hiroyuki and Kurumada.
- Childhood Friends: Of Hiroyuki, as told by Osamu in ZERO.
Voiced by: Junichi Kanemaru
Asuka's pet dog, a female Siberian Husky. In ZERO, she gave birth to puppies.
- Team Pet: To the Sugo Team, in the earlier series, doubling as a comic relief animal.
Aoi Formula/ZIP Formula
Voiced by: Toshihiko Seki
A former crash racer, he first meets Hayato while rescuing a girl on a highway. He appears later to help Hayato hone his skills during a crash race, giving Hayato the skills he need to becoming an established racer. He joins Aoi ZIP Formula when the team created a secondary team and the team's disappointment of Shinjyo of not giving the team's needs of victory. He would later become Hayato's greatest friend and fiercest rival.He also possesses offensive skills, even though he avoids to use them except when in extreme situations in races.
- Big Brother Mentor: To Hayato, who helps to to improve his racing skills and Hayato in turn looks up to him as a brotherly figure.
- Big Damn Heroes / Car Fu: In the Fireball Race, he does this to save Hayato from almost certain defeat by crashing his Proto Jaguar with the other driver's car who was leading at the last second.
- Big Eater: In Double One he is seen eating nosily at Hayato's house and eating an egg before eating a toast.
- Boisterous Bruiser: He's usually a fun-loving guy who wanted to get into racing for money, but that trait is dropped little by little in the last 3 OVAs.
- Brought to You by the Letter "S": In the TV series his racing suit has the letter "Z" on both the front and back, and his helmet also has the letter "Z".
- Brown Eyes: Which symbolizes his enigmatic nature when it comes to races.
- But Not Too Foreign: He is half-Spanish, and he spends most of his time in the US.
- But Now I Must Go: He does this to Kyoko in the last episode of SIN after he wins the championship before leaving to the US, but he promised her to let her visit America whenever possible.
- Celibate Hero: While he cares for Kyoko (as seen in the final episode of Sin), he is too focused on his rivalry with Hayato.
- Dark and Troubled Past: His best friend Eiji died in a car collision as a result of Kaga discovering the Zero Realm and his failure to save him from the car Eiji was trapped in.
- Every Scar Has a Story: Has a trademark crescent-shaped scar on his forehead, see above for how he got it.
- Genki Guy: In the TV series and the first OVA.
- Get A Hold Of Yourself Man: He punches Shinjyo twice in episode 6 of Zero, when the latter is moping about about being possibly fired from Aoi.
- Good Scars, Evil Scars / Scars Are Forever: His scar on his forehead (as explained in the drama CD SAGA II: Round 5) was the result of his failed attempt of rescuing Eiji from the car that he was in and the car exploded, killing him and Kaga's forehead was cut by a piece of the exhaust pipe, giving Kaga that scar.
- Important Haircut: He has one at the final episode of Sin.
- Multicolored Hair / Skunk Stripe: He has green-orange hair with a black braid tail for most of the series until...see Important Haircut above.
- My Greatest Failure: The grief he has over Eiji's death are one of the reasons he's afraid to use the Zero Zone again, at least, up until Zero.
- My Hero Zero: Like Hayato, he also uses the Zero Zone. See My Greatest Failure above in Kaga's case.
- Only in It for the Money: For most of the TV series.
- The Only One Allowed to Defeat You: To Hayato, so much that it became a driving point in SIN.
- Real Men Hate Sugar: He doesn't like "foods that are too sweet".
- Real Men Wear Pink: He drives a purplish-pink race car in the TV series.
- Red Baron: "Wild Child of the Circuit", "Migratory Bird of the Circuit"
- Red Oni, Blue Oni: Hayato and him, he is the blue to Hayato's red. In the final Drama CD, he is the red to Eiji's blue.
- Shoo Out the Clowns: He became more serious in ZERO and the last 2 OVAs.
- Stepford Smiler: He seems to be a cheerful, sort-of-a comic relief guy (and he is to an extent), but he hides the pain of losing his best friend due to the Zero Realm years earlier.
- Smoking Is Cool: Once he stopped being the funny guy and started being serious.
- Super Mode: The Zero Realm, just like Hayato and Shinjyo.
- Unfortunate Names: His name is another word for "bleeding someone dry" ie, "taking someone's money until there's none left". Subverted later in the series when it's revealed that his real first name is not Bleed, but Jotaro.
- Worthy Opponent: Hayato, and only Hayato. In fact, in ZERO, he said that Hayato was the reason he came back to Cyber Formula and shortly after finally defeating Hayato and wins the championship in SIN, the two shared a last hug.
- You Gotta Have Green Hair: With orange triangles on each side and a black braid tail.
Voiced by: Hikaru Midorikawa
A highly-successful racer and 2-time European F3 Champion, he makes the switch to Cyber Formula after Kyoko spotted him winning the F3 championship. After winning the All-Japan Grand Prix, he is considered to be a top contender to win the CF Grand Prix. At first, he is positioned to be Hayato's biggest rival, but as the series progresses, it's revealed that he is his own worst enemy and has a moody streak that pops up on some occasions.He is in a long-term relationship with Miki Jounouchi, who keeps him in line for most of the time and is more sensible than he is.
- The Ace: The winner of the European F3 championship twice in a row and many consider him to be a top contender for the CF Championship.
- Broken Ace: Due to his massive arrogance and hot temper, which explains his shortcomings later in the TV series.
- Beta Couple: Miki and him, which was more or less established in ZERO.
- Break the Haughty: He gets chewed out by Miki after he lashes out on his team's new mechanics and when he was beaten by Hayato at the English Grand Prix.
- Butt Monkey: Due to his car's troubles, even when his car is about to cross the finish line.
- Can't Catch Up: At first he is shown to be Hayato's biggest rival, but he loses ground later in the series and he only won one championship because Hayato was seriously injured in a race.
- Cool Shades: In episode 6 of SAGA, in which the shades greatly resembles Knight Shoemach.
- Determinator: In one episode of the TV series, when his engine runs out of fuel near the very end of the African race, he pushed the car to the finish line and managed to get 5th place. He does the same thing once in his F-3 days.
- Don't You Dare Pity Me!: When his car got stuck in mud at the race trials in Africa, Hayato tries to help, but said that he'd rather retire than to take Hayato's pity.
- Fatal Flaw: His huge Pride, which causes a lot of problems to his relationship with his team.
- Hard Work Hardly Works: Despite being a hard worker in the track, he gets constantly beaten by rookies, to the point where he alienates people around him when he thinks this way. Miki talks some sense into him.
- Heroes Want Redheads: While not the hero, he does find a love interest in Miki, who has reddish-brown hair.
- Hot-Blooded: He gets his moments at times.
- Jerkass —> Jerk with a Heart of Gold: Started out as a total jerk, but towards the end of the TV series, he becomes a nicer person.
- Never My Fault: He blames his staff members for his losses in races, especially in the African GP. Fortunately, Miki snaps him out of this.
- Paper-Thin Disguise: In episode 6 of Saga, when he returns to racing for Union Savior.
- Rage Against the Reflection: The end of episode 25 of the TV series, after he was defeated by Hayato in the race trials in England.
- Red Baron: "The Young Japanese Warrior"
- The Resenter: To Hayato and the other racers at first, when he gets constantly shown up by the then-rookie Hayato (although it is later shown that he's more resentful to himself).
- The Rival: Towards Hayato, in at the first half of the TV series.
- Sensitive Guy and Manly Man: The manly man to Hayato's sensitive guy. He's also the manly man to his teammate Katagiri.
- Super Mode: The Zero Realm, like Hayato and Kaga, although he only does this once.
- Survival Mantra: In EP 6 of ZERO, when is car isn't performing well:Shinjyo: "Run Ex-Superion, Run...run...RUN!!!! RUN! RUN! RUN! RUN!!!"
- Tall, Dark and Snarky: He can be totally snarky at times.
- Technician vs. Performer: The technician to Hayato's performer.
- Worthy Opponent: Again, to Hayato, when he fully gains his respect at the end of the TV series.
Voiced by: Atsushi KisaichiA former NASCAR racer, Phill joins the Aoi ZIP Formula team as a replacement of Naoki Shinjyo after new president Kyoshiro Nagumo merged the two teams together to form one team. He is given the Al-Zard NP-1, which helps him win the first four races (except for the 4th race due to "mechanical" reasons). But is Phill really driving or is someone else doing the driving for him?
- Nice Guy: Although he is quiet (more so in SAGA), he's acutally a sweet guy in general.
- The Stoic: In SAGA, he is seen at first to other characters.
- Not So Stoic: His stoicism shatters in EP 8, when he angrily destroys the connection between Al-Zard and him and tries to take control of the car without the navigation's assistance, but he gets seriously injured in the process.
- Sugar and Ice Personality: He is first shown as a quiet guy, but he mellows out by the end of Saga.
- Token Minority: Serves as the first one in the series.
Voiced by: Yuri Amano
The daughter of Aoi Corp's president, she is the team owner of Aoi Formula. She makes sure her racers obtain victory at all costs. She has a little crush on Shinjyo, then she later falls for Kaga, but deep down inside, she knows that she can't stay with him, even though Kaga has some feelings for her as well.
- All Love Is Unrequited: That poor woman...she loved both Shinjyo and Kaga, but Shinjyo's already taken and Kaga left to the United States after the end of the series.
- Badass Armfold: Which symbolizes her being in control.
- Cry Cute: In EP 6 of ZERO in Shinjyo's race and the final episode of SIN.
- Defrosting Ice Queen: Later in the series. Established in episode 6 of ZERO when she's happy for Shinjyo's victory.
- Drowning My Sorrows: In episode 6 of ZERO, after Kaga and Shinjyo's fight.
- Hair Antennae: She has one in SIN, but she's not that ditzy.
- In-Series Nickname: "Queen", for being the boss of her team.
- Omniglot: Supplemental materials reveal that she is skilled in English, French, German, Italian and Chinese.
- Quickly Demoted Woman: In SAGA, when she is demoted to vice president. She gets back her position at the end, only to retire, although it is hinted to be a temporary retirement.
- Rich Bitch: In the TV series. She's willing to get enough money to get the best drivers in her team and in episode 26, she calls her father to deliver a car (Fire Superion GTR) that would crush Asurada.
Voiced by: Shuichi IkedaThe new president of Aoi ZIP Formula in SAGA. During his tenure as president, he first merges Aoi Formula and Aoi ZIP Formula into one team, then demotes Kyoko Aoi to vice president of the team and finally putting Phill Fritz into the team and firing Naoki Shinjyo because he feels that he doesn't meet the satisfaction needed to win. As the story goes on however, he uses unethical and illegal means to assure victory for the team.His deceased brother Masaki and Hiroyuki Kazami were once working partners on mission to come up with the idea of "the ultimate race car", but for some reason, they part ways.
- Corrupt Corporate Executive: In Saga, as team president of Aoi, who does unethical practices, like putting drugs on Phill to suppress the effects of Al-Zard.
- Forceful Kiss: Does this to Kyoko, in which he tells her that Al-Zard will win the championship.
- Manipulative Bastard: In Saga, where he willingly manipulates Phill's machine into winning.
Voiced by: Nobutoshi Canna (as Nobutoshi Hayashi)The chief mechanic of the Aoi team and Shinjyo's good friend despite being in rough terms with him when they first met.
Gregory "Gray" Steinbeck
Voiced by: Takeshi WatabeA chief of a band of street racing engineers. Referred by Kaga as an old friend, he and his men helps Kaga and Hayato as their pit crew in the Crash Race. In SIN, he is recruited by Nagumo as a legitimate engineer of AOI Zip Formula.
Osamu Sugo/Knight Shoemach
Voiced by: Show Hayami
A mysterious driver for Union Savior, he sees Sugo Asurada's portable garage and he sees Asurada a few days before the 1st race in America. In that race, he defeats the other racers, including Hayato. In the Brazilian GP, he saves Hayato's life from an attack by Bootsvorz. But what is his purpose of looking for Asurada and why does he help Hayato?His alias is named after Michael Schumacher, who was in F3 at the time the character was introduced.
- The Ace: Has an excellent record in F3, and is regarded in-series as the best driver.
- Aloof Big Brother: Sort of. He occasionally has this trait, which is especially prominent in the 11 arc.
- Awesome McCool Name: As Shoemach, who also happens to share the same surname of a certain famous driver.
- Beta Couple: Clair and him, who are already an item long before any of the couples in the series.
- Big Brother Mentor: To Hayato, who helps him in races.
- Brought to You by the Letter "S": In 11, he has a race suit that has the letter "S" on the front and back of it.
- Char Clone: Drives a red and white car that is faster than the other cars (in the first half of the TV series), wears Cool Shades, is Asuka's older brother and is a rival of Hayato in the first 2 series.
- Cool Shades: As Knight Shoemach, who does this to keep an eye on Hayato and his team.
- Curtains Match the Window: He has brown eyes and his hair is also brown.
- Defector from Decadence: He leaves Missing Link after learning that Smith wants to use Asurada for his own personal gain.
- Get A Hold Of Yourself Man: He does this to Henri in the final episode of Zero after Henri tried to abandon his chance of winning the championship. Ironically, he was slapped by his father in a flashback in the TV series before he leaves his home to England.
- He Knows Too Much: Shoemach knew that Hayato's father was developing Asurada during their tenure in Missing Link and learns about Smith's sinister plans. Smith tries to kill him for exposing his secrets, but wound up injuring him instead. He got better, but unfortunately, he suffered an eye injury, which would set the course for 11.
- Jerkass Façade: In 11, it seems that he Took a Level in Jerkass once he challenges Hayato and the other drivers, but it turns out that he just wanted to teach Hayato how to be a better racer as his eyesight problems begins to worsen.
- Long-Lost Relative / Luke, I Am Your Father: He is Asuka's brother, he ran away from home 5 years before the original series takes place to be a racer in England.
- Mysterious Protector: In the first half of the TV series.
- No Celebrities Were Harmed/Named After Somebody Famous: He was modeled after Michael Schumacher, of course.
- Paper-Thin Disguise: Thankfully, Asuka's pendant spoils everything.
- Red Baron: "The Supersonic Knight"
- The Rival: To Bootsvorz, in their F1 days.
- Secret Keeper: He is the one (along with Junko) who knows about Smith's plans to steal Asurada.
- Sensitive Guy and Manly Man: He's the manly man to Bootsvorz's sensitive guy.
- Sibling Yin-Yang: He and Asuka. He's the calm and levelheaded sibling of the two.
- Spanner in the Works: In the Brazilian race, he crashes into Bootsvorz when Bootsvorz attempts to sabotage Asurada.
- Spell My Name with an "S": He is called "Knight Shoemach" in the series.
- Sugar and Ice Personality: He acts professional and level-headed, but he really warms up to Hayato and Asuka.
- That Man Is Dead: He does this to uncover Smith's crimes after Hiroyuki's death, and says that to Hayato after returns to CF when he challenges the other racers. Both times, he reverts to his real name after his retirement.
- Umbrella of Togetherness: Shares an umbrella with Clair in 11's first episode.
Karl Lichter von Randoll
Voiced by: Youko Matsuoka
Son and heir to the extremely wealthy and noble Randoll family of Austria, he is incredibly talented at every sports and endeavors he can get his hands on. He wasn't initially interested in taking up Cyber Formula after finding other sports in challenges boring, but after a racing duel with Hayato, he joins Union Savior as a replacement for the incapacitated Knight Shoemach, winning in his first race in the Norwegian Grand Prix.He has a thing for Asuka, falling in love with her at first sight, but she doesn't return his feelings.
- The Ace: He's won many of the championships in every sport he's in and excels in everything.
- Always Second Best: He may have a God-given talent in racing (and in other sports), but he still has a serious disadvantage compared to his old rival Hayato.
- Big Ol' Eyebrows: Although he is more of a Bishonen-type character.
- Blue Blood: He's extremely wealthy and he's also a Marquis on top of that.
- Break the Haughty: This happens to him in the Spanish GP in EP 33 of the TV series.
- Cock Fight: During the latter half of the TV series, he invokes this on Hayato in races, especially when Asuka is around.
- Cool Shades: As Prince Rosencreuz, when he comes back to CF after the accident.
- Good Scars, Evil Scars: He has one on his left cheek as the result of the accident with Hayato.
- I Know Karate: In episode 7 of Saga, when he beats up a bunch of thugs in the hotel room. Being a world martial arts champion helps.
- Insufferable Genius: In the latter half of the TV series. He gets better in the last 3 OVAs, even forging a friendship with Hayato.
- Jerkass/Jerk with a Heart of Gold: Like Shinjyo, he mellows out throughout the series, even having a sense of chivalry.
- Longhaired Pretty Boy: In SAGA and SIN, complete with ponytail.
- Paper-Thin Disguise: As "Prince Rosencreuz", with the help of his parents' money.
- Phenotype Stereotype: Blond hair, green eyes and he's Austrian.
- Red Baron: "Genius", "Amadeus of the Circuit"
- The Resenter: In the second half of the TV series, not only he resents Hayato's continued success in racing, but also his relationship with Asuka. In 11, he resents Shoemach for "messing up" with his pace.
- The Rival / Worthy Opponent: At least in the latter half of the TV series, where he doesn't only race Hayato for a trophy.
- Single-Target Sexuality: He's this for Asuka, and only Asuka. Weirdly enough, he tries to flirt with Rena. Of course, it doesn't work.
- Something About a Rose: In one episode of the TV series he throws a white rose at Asuka.
- Spoiled Brat: When at his worst, due to him having a hot temper.
- Technician vs. Performer: The technician to Hayato's performer.
- Trademark Favorite Drink: Tea; particularly black tea, as he would drink them in pit breaks and even in the middle of races.
Voiced by: Shiho Kikuchi (video games only)The female racer for Union Savior, appearing first in the PlayStation game and then in the last ending credits of SIN.
- Bifauxnen: She is at first is mistaken for a guy in the ending credits of SIN.
- Canon Immigrant: She made her first appearance in the PS1 game, and like Seiichiro, she was later put into the final closing credits of Sin.
- Spot of Tea: Like Randoll, she drinks tea inside pits, as evidenced in the final ending credits of Sin.
Billy Heinz Garnett
A British racer who raced for many teams, including Aoi ZIP and Union Savior.
Voiced by: Motomu KiyokawaRandoll's personal butler, he's been with the Randoll family since he can remember. Grayson knows him well better than probably his parents.
Voiced by: Bin Shimada
American racer for Star Stampede at the beginning of the series, he later joins Sturozech Project/Stormzender and is the longest-tenured racer in CF. Happy-go-lucky, boisterous, and a skirt chaser, Gudelhian is a competitor who doesn't takes things very seriously, and his antics rubs his co-worker Heinel the wrong way more than once.
- A Lady on Each Arm: Has more than 2 ladies in tow with him.
- Americans Are Cowboys: He wears a cowboy hat, he likes horse riding, and he's from Kentucky.
- Boisterous Bruiser: He's one of the few racers who doesn't take things seriously.
- Eagleland: Of the mixed type variety.
- Expy: Of Nigel Mansell, in terms of racing skill. The difference between those two is Gudelhian is American.
- Funny Foreigner: He's American and the comic relief of the series.
- Genki Guy: A really jovial guy, which can annoy Heinel at times.
- Gratuitous English: He often does this, such as saying words like "Me you-tachi".
- Handsome Lech: In episode 5 of 11, he tries to hit on a nurse while recuperating.
- Nice Hat: He wears a cowboy hat for most of the time when he's not racing.
- The Nicknamer: He calls Hayato "Samurai Boy".
- Plucky Comic Relief: He serves as this whenever he isn't racing or jerking around.
- Red Baron: "High-Tech Cowboy"
- Stay in the Kitchen: In a drama CD, he said that women shouldn't be racers (referring to Marie), which leads to the female characters issuing a challenge for him. This is an Out-of-Character Moment for him since he's known as a skirt-chasing ladies' man.
- Wholesome Crossdresser / Disguised in Drag: He dresses up as a woman to visit Hienel in the hospital, who was exhausted from overwork in another drama CD.
- With Friends Like These...: With Heinel, whom he is good friends with him despite constantly fighting most of the time.
Voiced by: Ryotaro Okiayu
The son of the president of the Sturobrahms automotive company, Heinel is a racer for SGM, as well as the team's machine designer. Since then, he joins the Sturozech Project and Stormzender, where he works as the racer, manager and machine designer of the team (he stops being a full-time driver in 2022). He and Gudelhian were once rivals, but they as the series progresses, they become more friendly...in a weird and wacky sort of way.
- Berserk Button: Don't disturb his pace or make fun of him, or he'll drop his usually calm nature and blow his top.
- Brainy Brunette: A male example, he is a machine designer who also makes cars.
- The Comically Serious: When dealing with Gudelhian's antics.
- Gadgeteer Genius: He designs his cars as well as making them.
- Expy: Of Alain Prost. The main difference is that Heinel is German. He even shares Alain's nickname of "The Professor".
- Perpetual Frowner: Due to his seriousness concerning his work, he rarely smiles.
- Red Baron: "Precision Machine Driver"
- Sibling Yin-Yang: He and Lisa, who is the more serious and focused of the two.
- Smart People Wear Glasses / Stoic Spectacles: As a car designer.
- The Smart Guy: Computer analyst and car designer.
- Sugar and Ice Personality: He may have look calm and professional, but he is really happy when Gudelhian wins the championship in Saga.
- When He Smiles: He has his moments, notably when Gudelhian wins the championship.
- With Friends Like These...: He and Gudelhian, who manages to stay friends with him, even with all the fighting.
Marie Arbert Luisa
Voiced by: Masako Katsuki (drama CDs and video games only)Female racer who has been shown since Double-One, although she never has a speaking role in the anime.
- Fiery Redhead: Is very passionate about her sport, and has quite the temper.
- She Who Must Not Be Heard: She never once speaks in the series, although she does have speaking parts in the drama CDs.
- Passionate Sports Girl: Marie is quite devoted to her sport, and plays a plot point in the fourth SAGA II drama CD.
Voiced by: Akemi Okamura (drama CDs and video games only)The sister of Franz Heinel, she is an assistant in her brother's team.
Voiced by: Naoki Tatsuta
A former Formula One racer of Missing Link and a teammate of Osamu Sugo, they became rivals when their racing skills and personalities began to crash. One day in a test drive who see who would become the main racer, he crashed horribly and he lost his left eye and arm. So in order to continue his racing career, he was given a mechanical arm and eye by Smith. In the TV series he is given orders by Smith to steal Asurada's computer system.
- An Arm and a Leg: In his backstory, he loses his left arm (along with his left eye) in a rather nasty test driving accident.
- Artificial Limbs: He gained a cybernetic arm and modulation eye shortly after the accident and in Saga, he gained natural-looking cyborg implants. The robotic arm and eye is inspired by the ones Top Gunder has in Choujinki Metalder.
- Car Fu: He does this with his Missioner VR-4 by driving it to his former boss' helicopter after he was betrayed by said boss one too many times. Also see Heel–Face Turn.
- Disappeared Dad: His father (who was a diplomat) died when he was 5 years old.
- Electronic Eye: After the accident, is given a cybernetic eye, which are replaced by more natural-looking ones, which has a gold tone in the iris.
- Eye Scream: He lost his left eye (along with his left arm) in an F-1 test when he crashed while chasing Osamu.
- Expy: Of Thierry Boutsen, for his driving skill.
- Good Scars, Evil Scars: After he got his new prosthetic eye, it revealed a huge scar over his left eye.
- Handicapped Badass: He has a cyborg arm and eye, but that doesn't stop him from being a race car driver.
- Heel–Face Turn: He used to crash other racers, but then he crashes his own boss' helicopter with his Missioner VR-4, and finally races normally like other good racers.
- Kindhearted Cat Lover: According to supplemental materials, he owns a cat named Josephine.
- Punch Clock Villain: He may be working for Smith in the TV series, but does it only because he's following his orders and he's a fairly decent guy off-work.
- Red Baron: "The One-Eyed Dragon", "Oxidized Silver"
- The Rival: To Osamu in their F1 days.
- Sensitive Guy and Manly Man: The sensitive guy to Osamu's manly man.
- Spell My Name with an "S": Edelhi or Edelie?
- Supreme Chef: From what his profile and the drama CDs can tell, he's an excellent cook and is good at making dishes, especially pirozhki.note
- Team Dad: He's seen as a father-like figure to his team, especially after his Heel–Face Turn.
Voiced by: Nobutoshi Canna (as Nobutoshi Hayashi)Originally a NASCAR racer, Leon comes to Cyber Formula with Missing Link as Bootsvorz's junior after his tenure in the former. His most notable trait is that he retires in every single race he's in during his debut year.
- Arch-Enemy: With Henri, as he has a cat and dog-like relationship with him.
- Fiery Redhead: A redhead and he has a hot temper.
- Handsome Lech: Even more so than Gudelhian!
- Hot-Blooded: With the red hair to match.
- Named After Somebody Famous: His last name is taken after the late Dale Earnhardt.
- Peek-a-Bangs: Although though both of his eyes are shown.
- Real Men Wear Pink: His racing suit has hot pink stripes and his helmet has a pink heart.
Voiced by: Masato HiranoThe owner of Missing Link, he wants to obtain Asurada's system by any means necessary.
- Corrupt Corporate Executive: He is willing to obtain Asurada's data at all costs, so much that he would kill for it.
- Karmic Death / Hoist by His Own Petard: He was killed as his helicopter (which he used the chopper's missiles as a weapon) crashed down.
- Last Name Basis: His first name is Charles.
- Sinister Shades: He is never seen without those.
- You Have Failed Me: Attempts to do this on Bootsvorz after failing him multiple times. It doesn't work.
Voiced by: Tomomichi NishimuraThe winner of the 7th and 9th Grand Prix, Lope has high hopes of winning the champion once again in the 10th Grand Prix. After his retirement following the 10th GP, he becomes the manager of A.G.S., assisting Akira Hiyoshi.
Brazilian racer scouted by Lope from Lupine STAG to replace Hiyoshi at AGS.
British driver racing for AGS.
Voiced by: Bin ShimadaHiyoshi is a promising racer in Sugo Asurada, but his dreams of entering the 10th Grand Prix are dashed after Asurada locks Hayato's driving data and he leaves in a huff. Despondent, he travels to Brazil for work, where he meets Pitalia Lope, and as luck would have it, is put into KOH-I-NOOR Formula, starting from the race in Brazil.
Voiced by: Kousuke Tomita
A well-known off-road racer in his homeland of Hokkaido, he is joined by Albatross DDT in 2015. He meets Hayato before the All-Japan Grand Prix and they become friends rather quickly and constantly helps Hayato throughout the TV series.
- Big Brother Mentor: To Hayato, and like Kaga, Hayato see him as a brother-like figure.
- Career-Ending Injury: His injuries at the German GP caused him to quit Cyber Formula, although he did return to off-road racing.
- Country Mouse: He comes from a ranch in Hokkaido.
- Curtains Match the Window: Has brown eyes and hair.
- Friend to All Living Things: Especially to V-8.
- Nice Guy: Which is why Hayato got friends with him in the first place.
- Red Baron: "Nature Boy of the Circuit", "Off-Road Demon"
- Sensitive Guy and Manly Man: He and Hayato plays the sensitive guys to Shinjyo's manly man.
Voiced by: Kenichi Ono
Created by Hiroyuki Kazami, Asurada is the most advanced navigation system in the world of Cyber Formula. In addition of communicating with humans, it can also analyze their emotions. Shortly after it's completed, Smith sees the potential in its abilities and attempts to obtain the system for weapons of mass destruction. Kazami manages to deliver the car to Japan from England but not before his son Hayato completes the delivery to the Fujioka track.
- Cool Car: Or rather, "Cool AI System For A Car".
- My Sensors Indicate You Want to Tap That: In one episode of the TV series, when Hayato was in the midst of a love triangle involving Asuka, Randoll and him, Asurada asks him what a kiss is and detects his heart rate.
- Parental Substitute: To Hayato in some ways, at the end of the TV series.
- "The Reason You Suck" Speech: A heroic version, he's just teaching Hayato to drive properly, really.
- Unwanted Assistance: An in-universe example, which is related to above statement.
Voiced by: Tatsuyuki Jinnai, Yasunori Matsumoto (teens)The original machine designer of Asurada and Hayato's disappeared dad.
- Blood from the Mouth: How he dies.
- Childhood Friends: Of Kojiro, who is Asuka and Osamu's father.
- Death by Origin Story: He was killed by Smith, his former boss who wanted to steal Asurada's system to use as a weapon.
- Disappeared Dad: See above for what happened to him.
- Heroic Sacrifice: He saves Osamu from the exploding car by shielding himself, which resulted in the debris piercing his body.
- Parents as People: Junko once told Hayato that he was so devoted to working on Asurada, that he forgot about them sometimes, but he doesn't let reality discourage him from chasing his dream.
- Posthumous Character: Hayato mentions him a few times thoughout the series.
Voiced by: Ai SatouThe mother of Hayato.
Hans von Randoll
Voiced by: Katsuhisa HoukiThe father of Randoll.
- Blue Blood: He's a duke.
Hilda von Randoll
Voiced by: Miyuki IchijouThe mother of Randoll.
Voiced by: Kozo Shioya
Voiced by: Motomu Kiyokawa
- Combat Commentator: Along with Sugimoto and Dave, whom he provides commentary with in the first 3 series (with Sugimoto) and the last 2 series (with Dave).
Voiced by: Kiyomitsu Mizuuchi
Voiced by: Aya HisakawaA photographer for the sports magazine Move, she mainly takes photos of races.
- But Not Too Foreign: Aya's mother is Japanese and her father is American.
- Canon Immigrant: She first appeared in the first Saga drama CD's and later, she appeared in some episodes of Saga and in Sin.
- Intrepid Reporter: Works as a photographer for a sports magazine and she checks up upon Kaga and Hayato's rivalry.
- Military Brat: Her father is an Army serviceman.
Voiced by: Kiyoko IrukawaAya's assistant at Move Magazine.
Voiced by: Ayako Kawasumi (video games only)
- Beta Couple: With Shiba. They end up getting together at the end of the game.
- Official Couple: She and Shiba are these in their first game in the game's ending.
- Canon Immigrant: She made her first appearance in the PS1 game, and like Seiichiro and Sera, she was later put into the final closing credits of Sin.
- Childhood Friend Romance: With Shiba, who are shown to be together in SIN's ending.
- Hair Decorations: She wears a headband for most of the time.
- Pit Girls: Becomes one in the video games.
Voiced by: Kazuya Nakai (SAGA II Round 5 drama CD)Kaga's deceased best friend, who was the person who got Kaga into racing.
- Death by Origin Story: Dies when his race car explodes and Kaga is unable to get him out of the car in time.
- Doomed by Canon: Explained in the SAGA II drama CD: he was killed in the crash during a race in which the Zero Realm was involved, which caused Kaga to steer away from the Zero Realm for years.
- Mentor Occupational Hazard: He serves as a pupil to Kaga, and considering what happened to him later when Kaga enters the Zero Realm...
- Red Oni, Blue Oni: The blue to Kaga's red.
- Posthumous Character: Kaga first mentions in the final episode of ZERO, later reveals his name in the final SAGA II CD.
Voiced by: Kenji NojimaFirst appears in the PS2 game Road to the Infinity 3. Driver of Phoenix Japan Racing.
Voiced by: Miyuki SawashiroAlso first appeared in Road to the Infinity 3. Co-driver of Phoenix Japan Racing.
First appeared in Road to the Infinity 3. Mascot girl of Phoenix Japan Racing.
Voiced by: Nobuyuki HiyamaFirst appears in Road to the Infinity 3. Driver of Team CF Ground.
- X Marks the Hero: A subversion: while he has a X-shaped scar on his forehead, he's not the hero of the game.
Voiced by: Showtaro MorikuboAppears in Road to the Infinity 3. Co-driver of Team CF Ground.