L' Unita Speciale In Golden Wind

L' Unita speciale is an elite subdivision in Passione. They are deployed by Diavolo in an attempt to assassinate Team Bucciarati and Trish Una. Its members move after Bucciarati and his group betrayed their boss, although most of the members don't actually show loyalty to Diavolo.

Squalo

As a member of Passione and by extension the Boss' Unita Speciale, he works with his partner Tiziano in Venice in order to assassinate Team Bucciarati after they defect from Passione. Squalo is a Stand User and commands the stealthy yet lethal Clash in battle.

• Clash: It is a shark Stand which cannot sustain itself out of water but can teleport between close water bodies to maul its target. 
  
• Liquid Warp: Clash is a fish Stand, thus it must stay inside liquids to persist and is only able to make brief leaps out of liquid to attack.

Tiziano 

As a member of Passione and by extension The Boss's Unita Speciale, Tiziano works with his partner Squalo in order to assassinate Team Bucciarati in Venice after the gang defects from Passione. Tiziano is a Stand User and commands Talking Head.

• Talking Head: It is a small octopus-like Stand. It attaches itself to others' tongues and prevents them from telling, or otherwise directly communicating, the truth. It can also control the victim's tongue. 
  
• Forced Lying: To take effect, Talking Head must first latch onto the victim's tongue. While Talking Head is attached, the victim is automatically forced to tell lies.
• Body Manipulation: In keeping with its ability to force its host to lie, Talking Head is also capable of controlling the victim's body to a minor degree.

Carne 

As a member of Passione and by extension the Boss' Unita Speciale, he is sent on a suicide mission to kill Team Bucciarati and Trish Una. Although he dies, his now-invincible Stand Notorious B.I.G continues to exist and attacks the gang on their way to Sardinia.

• Notorious B.I.G: It is one of the few Stands able to exist even after its user's death. Coupled with its ability to grow by absorbing energy, Notorious B.I.G can be said to be truly invincible. 
  
• Post-Mortem Activation: While Notorious B.I.G can be summoned while Carne is alive, the Stand is said to only activate upon its User's death, drawing energy from Carne's grudge.
• Energy Absorption: Upon activation, Notorious B.I.G slowly infects anyone that has touched the remains of its user and eats away at flesh and energy in order to grow a body.
• Partial Symbiosis: In its initial growth phase, Notorious B.I.G. can influence its host's body, causing them to perform actions without being consciously aware of them.
• Speed Detection: While Notorious B.I.G is blind, it can detect movement around itself, driving it to automatically attack the fastest moving object within range.

Cioccolata 

A mad surgeon reconverted into a member of Passione and by extension the Boss' Unita Speciale, Cioccolata is dispatched near Rome alongside his human pet Secco in order to kill Team Bucciarati. He subsequently battles Giorno Giovanna and Guido Mista at the top of a tower. Cioccolata is also a Stand User and uses his noxious Green Day to infect people with a deadly mold.

• Surgical Genius: Cioccolata is a trained surgeon and his sick experiments gave him an intimate knowledge of the human body, notably on which body parts he can cut while preserving his victim's life.
• Green Day: It is a humanoid power Stand which spreads a deadly mold, which eventually consumes people's flesh. It is an overwhelmingly deadly Stand as its mold has the potential to massacre whole cities. 
  
• Mold Infestation: Green Day's primary ability is to produce a potent mold that rots and destroys the flesh of those it infects in an instant.
• Dismemberment Control: A hidden ability of Green Day is that Cioccolata can implant its mold within his own severed limbs and body parts.

Secco 

As a member of Passione and the Boss' Unita Speciale, Secco is dispatched along with his master Cioccolata near Rome in order to kill Team Bucciarati. He subsequently battles Bruno Bucciarati personally in the streets of Rome. Secco is a Stand User and wears his Oasis as a suit to fight in person.

• Spitting: Secco has an uncanny precision when he spits objects, to the point he can deflect bullets by spitting rocks at them.
• Hearing: Due to his habit of swimming underground, Secco developed a keen sense of hearing in order to locate his targets while underground.
• Oasis: It is a suit-like Stand granting him physical strength beyond human limits and the ability to liquefy objects he touches.
• Ground Liquefaction: Oasis' main power is to make solid ground, among other things, turn into mud.
• Physical Enhancement: Oasis enhances Secco's physical abilities, mainly his power and speed.