Millefiore Family

The Millefiore Famiglia is the most powerful Mafia Famiglia in the world when depicted in the Future Arc of the series 9 years and 10 months after the present day. The Millefiore Famiglia is made up of two groups: the Black Spell and White Spell, both of which were formerly two separate Famiglias, the Giglio Nero Famiglia and Gesso Famiglia, respectively, the former withdrawing after Yuniawakened from Byakuran's drug.

Varia

The Varia are the Vongola Famiglia's elite independent assassination squad. They are composed of genius assassins who work in the deepest recesses of the Mafia. Each member takes on missions that are said to be impossible to accomplish by humans; however, they do not accept a mission unless they believe there is a 90% chance of success. Those that see them work often say that their high level assassination skills are demonic.

Despite lacking loyalty and respect for other members, they are extremely loyal to their leader, Xanxus. The Varia also appears to have more than fifty subordinates ranged under the command of the main members. The Varia is apparently reclusive, only showing themselves after Iemitsu Sawadadisappeared.

The Seven Arcobaleno's

The Arcobaleno (lit. Rainbow) is a group made up of World's Strongest "I Prescelti Sette" of an era, which translates to the "Selective Seven", who each possess a pacifier that represent the different colors of the rainbow, with each color corresponding with their respective Dying Will Flames. Their Pacifiers will glow when a member is near another Arcobaleno. The Arcobaleno were transformed from adults into their infant and current forms in an event known as "The Fated Day" in a contracted job or aRepresentative Battle, for the purpose of harnessing the power of the Tri-ni-set, which supports all life on the planet Earth. Each of the current Arcobaleno has their own unique "curse" and specific abilities, as well as the ability to emit the Dying Will Flame throughout their entire body, as well as each having an Animal Partner, except Lal Mirch, Aria, and Yuni. They are mentioned to have taken on anArcobaleno curse themselves in order to protect the Tri-Ni-Set (7³), or "ultimate power." The Arcobaleno are also mentioned to be "walking out of time", meaning that they cannot age or die due to old age, although the Sky Arcobaleno's curse is a short lifespan rather than the infant body (except Luce, who had both), making the Sky Arcobaleno the only exception. Additionally, if one or more Arcobaleno dies, the Sky Arcobaleno, if still alive, can resurrect them by sacrificing his or her own life. However, eventually, the Arcobaleno weaken and thus Checker Face removes the Pacifier from the Arcobaleno, leaving a separate stone Pacifier to the former Arcobaleno, which causes the former Arcobaleno to die or become disabled. The few survivors become the Vindice, whose primary goal other than upholding the mafia law is to avenge themselves on Checker Face.

Vongola Sun Guardian

Ryohei Sasagawa:

The highly energetic Sun Guardian of the 10th Generation Vongola Famiglia, Ryohei has the tendency to overdo whatever he sets out to do. Whether its a 1000 push-ups or early morning jogs, Ryohei does whatever it takes to stay in prime condition.
Ryohei's pride is his boxing, a trait he shares with the First Generation Sun Guardian Knuckle. He is willing to bet it all on his boxing and bases his fights on the rules of boxing, such as a fight always being one-on-one. The Sun Guardian of the Vongola Famiglia does whatever is required of him to protect his friends, Famiglia, and family, even if it puts his own body at risk, and thus fulfills the role of the Vongola Sun Guardian, which is "Destroying the misfortune that attacks the Famiglia with their own body, they become the Sun that brightly shines upon an area.

Vongola Thunder Guardian

Lambo:

The Lightning Guardian of the 10th Generation Vongola Famiglia, originally from the Bovino Famiglia, Lambo is a 5-year-old kid with an overly large ego. Lambo is by far the youngest 10th generation Guardian, and, as such, the rest of the Guardians try to keep him out of battle as much as they possibly can.
Lambo has the tendency to irritate those around him with his behavior and way of thinking. However his family care for him greatly, going to great lengths to keep him safe.
The few times that Lambo does battle, he uses the Ten Year Bazooka to switch with his 15 year old self. As a 15 year old, Lambo's combat capabilities have greatly improved, and he gives off a calmer and more subtle aura.
Due to being struck by lightning countless times, Lambo's physiology has changed in such a way that Lambo's skin can easily conduct electricity, thus allowing him to fulfill the role of the Vongola Lightning Guardian, which is "To draw damage to himself and away from the rest of the Famiglia, serving as a lightning rod.

Vongola Rain Guardian

Takeshi Yamamoto:

The Rain Guardian of the 10th Generation Vongola Famiglia, Yamamoto initially believed that the "mafia" was a game being played by his friends, and joined willingly, eager to be part of the group.
Yamamoto is the sole swordsman among the Guardians, a trait he shares with the 1st Generation Vongola Rain Guardian Asari Ugetsu. Yamamoto is extremely proud of his sword style, the Shigure Soen, which he inherited from his father, Tsuyoshi Yamamoto, often saying that his sword style is a perfect style and second to none, and will not let anyone look down on it.
Although generally friendly, Yamamoto is quite powerful in battle, often defying the odds by beating opponents said to be more powerful than him. His agility and reflexes have people calling him a natural-born hitman.
Yamamoto is one of the more calm people among the 10th Generation Guardians, and has often solved any squabbles that may arise, and thus fulfills the role of the Rain Guardian which is "To become a blessed shower that settles conflict and washes everything away.

Vongola Mist Guardian

Mukuro Rokudo:

The 10th Generation Vongola Mist Guardian, Mukuro was initially an enemy of the 10th Generation Famiglia, looking to take over Tsuna's body in his bid to destroy the Mafia; however, after his defeat at the hands of Tsuna, Tsuna's father, Iemitsu Sawada, offered him the position of the Mist Guardian in return for protecting his friends, Kenand Chikusa.

Since then, Mukuro has aided the Vongola many times, always stating that he will one day take over Tsuna. However, due to Mukuro being locked away in the Vendicare Prison, his participation is limited. Due to this, Chrome Dokuro, one of his followers, assumes the role of the Mist Guardian during his absence. If the situation demands it, Mukuro can take over Chrome's body and fight. Mukuro's way of deceit and his mastery of illusions fullfills the role of the Vongola Mist Guardian, which is "Creating something from nothing, and nothing from something; thus bewildering the enemy, to render the Famiglia's true form intangible with visions of deceit.

Vongola Storm Guardian

Hayato Gokudera:

The Storm Guardian of the 10th Generation Vongola Famiglia, Gokudera follows his boss through thick and thin, and initially didn't mind dying for the sake of the Vongola. However, after getting to know his boss better, Gokudera's suicide-like tendencies subsided, and now looks to somehow survive each battle, so as to be able to laugh with his friends again once the battle is over.
Gokudera's pride is in being a Guardian, and in the future he achieves his dream of becoming the right hand man of Tsuna. He's said to resemble his predecessor G. in personality and fighting style. His fighting style and personality fits the role of the Vongola Guardian of Storm, which is"Continuously at the heart of the attack, the furious Storm that never rests.

Vongola Cloud Guardian

Kyoya Hibari:is the leader of theNamimori Middle Disciplinary Committee, prefects who are in fact a group of delinquents that are all loyal to Hibari. Hibari himself is a violent delinquent who uses his status to harass other students. As shown several times in the series, he prefers to be alone and cares little for his subordinates. He loves Namimori more than anything, and will often say "I'll bite you to death," or "kamikorosu," to those that disturb Namimori Middle School. Hibari is very proud of his school and is apparently the only person who even likes their school's anthem, even using it as his ringtone. In the Kokuyo Arc, he adopts the Kokuyo Assassin Birds' bird. The bird (subsequently nicknamed "Hibird" due to its connection to Hibari) becomes attached to Hibari. Hibird can also sing the school's anthem, taught by Hibari, who loves it. Reborn piqued Hibari's curiosity in the mafia early on in the series and Hibari considers him a worthy opponent, having a strong urge to fight him.

Mafia Boss

is the head of the crime family and the top decision maker. A boss will typically put up layers of insulation between himself and his men in order to defeat law enforcement efforts to arrest him. Whenever he issues orders, he does so either to his underboss, consigliere or capos. The orders are then passed down the line to the soldiers.