This is a list of characters that are within the Cardfight!! Vanguard media franchise.

Main characters

Team Q4 (Quadrifoglio)

The main protagonist of the original "Cardfight!! Vanguard" series. When he was younger, Aichi was a very shy and lonely boy who was frequently bullied at school. After receiving the rare card "Blaster Blade" from Toshiki Kai one day, he begins to come out of his shell. He eventually meets Kai once more and is persuaded to become a Vanguard player, slowly learning the rules and improving his skills as the series progresses. In the first season, Aichi uses a Royal Paladin deck.

Later in the first season, Aichi awakens the power of Psyqualia, a rare psychic ability that gives him the power of precognition during Vanguard battles. However, using Psyqualia corrodes the user's personality, turning Aichi into a cold-blooded, overconfident opponent. Under the manipulation of Ren Suzugamori, a fellow Psyqualia user, Aichi embraces Psyqualia to gain the strength he believes he needs to surpass Kai. Symbolic of this, he abandons his Royal Paladin deck in exchange for a Shadow Paladin deck and begins to use Kai's "Final Turn" catchphrase when he foresees victory.

Aichi is convinced to abandon Psyqualia after a match with Kai, in which he realizes his true wish of fighting Kai on equal terms without reliance on Psyqualia. He also regains his Royal Paladin deck. However, Aichi cannot completely rid himself of his desire to use the Psyqualia. He eventually embraces both the light and dark sides of himself – the part that embraces Psyqualia and the part that rejects it – and goes on to defeat Ren, also ridding him of Psyqualia in the process. After his fight with Ren, Aichi loses his Psyqualia, but he is not disheartened by it at all.

In the second season, he uses a Gold Paladin deck after the Royal Paladin clan is sealed away. in the third season Aichi re-enrolls in Miyaji Academy with Misaki and start a Cardfight Club at his school. in the fourth season, Aichi mysteriously disappears from the world, and no one except for Kai and eventually a few of his friends, remember him. He willingly sealed himself in a sanctuary where the Quatre Knights resided and guarded him. It is later revealed that his reason for his confinement was to contain the seed of Link Joker, which was implanted in him soon after defeating Reversed Takuto. Eventually, Kai gets Aichi to see the error of his ways, destroys the seed into tiny benign shards, and brings him back.

In the second series of "Cardfight!! Vanguard G", Aichi is studying abroad in America. Despite living abroad, he helps Ibuki and his friends in regards to the Plan G.

One of the main protagonists, and a powerful Vanguard player who attends Hitsue High School. Kai only likes to battle strong players and dislikes those who run away or cannot back up their boasts with skill. He battles with a Kagero deck, usually surrounding a "Dragonic Overlord" card. He has a few trademark quirks when fighting, such as adding "the" to his move declarations (e.g. – "Stand up THE vanguard!", "Check THE drive trigger!", and "Stride THE generation!") and declaring "Final Turn" when he is confident he will win by the end of the current turn.

Although he has a cold and stoic personality, Kai is shown to be concerned with Aichi's development, especially after Aichi awakens the power of Psyqualia. Having previously witnessed the corrosive effects of Psyqualia on his former friend Ren, Kai attempts to dissuade Aichi from using Psyqualia by telling him he lacks true strength and then quitting the team. However, his words have the opposite effect intended, making Aichi grow more reliant on Psyqualia for strength. It is later revealed that Kai's true purpose for leaving the team was to train alone and grow strong enough to defeat Aichi, saving him from Psyqualia's influence.

In the second season, Kai loses his Kagero deck and instead uses a Narukami deck, which he still uses in the third season. During the second season, Kai temporarily joins New AL4, taking Tetsu's place. In season 3, Kai is a member of Hitsue High School's Vanguard Club along with Miwa, Morikawa, and Izaki. However, he soon realizes that his current strength is below that of Aichi and Ren. He later confronts Takuto for answers after seeing Naoki Reversed but ultimately gets Reversed himself. Unlike other Reversed fighters, Kai willingly accepted his destiny to be reborn as a Reversed card-fighter in exchange for the power to face Ren and Aichi as their equal. As a Reversed fighter, Kai uses a Link Joker deck. Later, he uses a Reverse Kagero deck against Ren and his last confrontation with Aichi.

In the fourth season, because of Aichi's evanescence, Kai becomes the main protagonist. He was the only person to remember Aichi after his disappearance, but he eventually helped Naoki, Misaki, Miwa, and Kamui also remember him. In this season, Kai uses a Royal Paladin deck in search for the missing Aichi. However, after his Blaster Blade Seeker card is taken by Kourin, he later returns to using a Kagero deck (which was built and given by Miwa) once again.

The cashier for the Card Capital shop and another Vanguard player who attends high school at Miyaji Academy. The niece of Shin Nitta, Misaki has eidetic memory. She is not as enthusiastic as some players are when it comes to Vanguard, but she enjoys it all the same. Normally, Misaki is calm and quiet, but she can become quite stern when she wants to, scaring almost everybody. It is revealed later she lost both of her parents when she was little and has not played Vanguard ever since until recently. After the events of episode 25, Misaki starts wearing around her neck the key to a box that contained a deck that her deceased parents made for her when she was a child. In the first and second seasons, Misaki uses an Oracle Think Tank deck. In the third and fourth season, she switches to a Genesis deck and also becomes a member of Aichi's Cardfight Club at school.

In the second series of "Cardfight!! Vanguard G", Misaki becomes the owner of the Card Capital franchise and uses Oracle Think Tank and Genesis. She is said to care deeply about Aichi.

A 12-year-old boy with a big mouth and the skill to back it up. As a testament to his confidence, he will often refer to himself as "The Great Kamui" while card-fighting. (In the Japanese version, Kamui says "ore-sama", which is an audacious way of refer to oneself.) He is very enthusiastic and energetic about Vanguard and does not care who his opponent is so long as they are not weak in his eyes. He hates being looked down upon because of his size and age. But being a young kid, he has a habit of messing up the phrasing of his words, often having to be corrected by someone else, which is a running gag within the show. He also has a crush on Aichi's little sister, Emi, and constantly vies for her attention, even going as far as to refer to Aichi as his "older brother". Ironically, another girl, Nagisa Daimonji, has a huge crush on Kamui and wants to marry him as soon as possible, but he does not feel the same way about her. Kamui is almost always accompanied by two kids, Reiji Uno and Eiji Saga, who greatly respect and praise him. Kamui uses a Nova Grappler deck. In season 3, Kamui, Reiji, and Eiji graduate from elementary school and become students at Hitsue Junior High School. He later becomes a Reversed fighter, but he returns to normal after being defeated by Aichi in episode 151.

In the second series of "Cardfight!! Vanguard G", Kamui is now in high school and works part-time at Card Capital 2, where he offers support to customers, especially Chrono.

Miyaji Academy Cardfight Club Miyaji Academy Cardfight Club is a club founded by Aichi at Miyaji Academy with the purpose of gathering people who are interested in playing Vanguard.

The blonde member of Ultra Rare. Publicly, she and the other sisters are cheerful and smiling idols, but when she is not on stage, Kourin is a no-nonsense and all-business woman. She is a skilled Vanguard player who utilizes a Royal Paladin deck, the same clan that Aichi uses but with different units and playstyle. Although she denies that she cares about Aichi, which her sisters often poke fun about, it is subtly hinted that she is somewhat interested in him. In season 2, she and her sisters use Angel Feather decks. In season 3, she transfers to Aichi's class in high school to get a feeling of a normal life by order of Takuto. She becomes a member of Aichi's Cardfight Club. Kourin returns to using a Royal Paladin deck. It is later revealed that she is one of many Reversed fighters. In episode 157, it is revealed that Kourin, Suiko, and Rekka were summoned by Takuto to be his agents, and none of the girls have memories of their pasts. In season 4, Kourin has also gone missing from almost everyone's memories except for Kai and Misaki, who has kept Kourin's hairband and wears it on her wrist. Kourin later reappears but allied with the Quatre Knights. She is the one who takes the card "Blaster Blade Seeker" from Kai, claiming to return him to his rightful owner, Aichi them she was defeated by Naoki Made Kourin back to her senses in episode 191 Kai's final battle and got concerned when Aichi's powers are acting up again. During Aichi and Kai's battle, she realized that Aichi Legions his avatar, Star-vader, Blaster Joker with her avatar, Companion Star Star-vader, Photon and he was not giving in to Kai and his mates after Kai won and Aichi fainted due to the after effects of the Seed's power, the moon palace breaks down. Kourin thanking Aichi for everything. In the Manga and V-Anime, she uses a Gold Paladin deck and is a Takuto's Called Walker (an assistant to the Concert Master)

Aichi's red-headed classmate who is first introduced in season 3 (episode 105). Prior to the series' beginning, both Naoki and Aichi attended the elementary school division of Miyaji Academy. During this time, Aichi was being bullied, but Naoki did nothing to help him, which made him feel guilty. At first, he did not know what Vanguard was, but one day, when he followed Aichi into Card Capital, he became interested in the game. He is then taught the rules of card-fighting by Aichi while using a Narukami trial deck, which he later purchases. Naoki is irritated by Miyaji Academy's focus on schoolwork and determent of pursuing one's ambitions. He later becomes Aichi's friend and a member of his Cardfight Club. His veneration for the game is recognized by his fellow club members and earns him to become the vice-captain of the Cardfight Club. As a new player to Vanguard, Naoki tends to easily get excited by the game's intricacies, which sometimes make all those around him feel uncomfortable. He has a tendency to say "Break Time!" while doing a Break Ride, which confused the Student President once.

Aichi's classmate who wears glasses and has a bowl-cut hairstyle. He is a proficient card-fighter but has little tolerance for inexperienced players, namely Naoki; the two's contrasting personalities often causes them to argue with each other. He is particularly envious of Naoki for being with Aichi, who Shingo idolizes as his hero. Incidentally, he also respects Aichi's Q4 teammates and any other famous card-fighters in the highest regard. Shingo has multiple decks; so far, he is shown to have decks for Murakumo, Spike Brothers, and Narukami clan. In the manga uses a Murakumo Deck and the V-Series uses a Nubartama deck.

Team TRY3