Massimo is a tall Italian man described as having an angular and bony build, making him look Irish. He has a thin nose, eyes and eyebrows. He has unfocused eyes and dark rings under them.

He has long, straight hair, and wears a hat with fur trimming. He appears to wear a one-piece suit with shoes that meld into it. He also wears a belt with a large buckle featuring a rectangular shape in it with three circles.[2]

The outfit's fabric is generally plain, but features many trimmings of fur, namely along his outer arms, the sleeves' cuffs, and two sections extending from his belt to his collar, which is entirely fur. Below the collar, in the center, appears to be a handle of sorts.[2]

since the beginning of his life, Massimo lives an extremely apathetic, uninspired life, often not making a big deal out of anything simply because he does not feel deeply about anything, lacking any passion, and this leaves him rather close-minded and lackadaisical, but develops considerably violent mannerisms after joining Passione's Narcotics Team.[2]

However, he is extremely resentful of others, sometimes without even knowing them well. Most notably his elder brother and Pannacotta Fugo. The general exception to his seemingly careless nature is the Narcotics Team, acting somewhat as a guide for Angelica Attanasio and Vittorio Cataldi. Vladimir Kocaqi expresses great faith in Massimo's abilities, claiming he could rule the world with them,[3] but Massimo doesn't believe him, nonetheless loyally going along with Kocaqi's leadership, being particularly distraught after the man's murder.[4]

Further, he shares a uniquely caring relationship with Angelica, voluntarily using his Stand to alleviate the pain of her chronic illness with its effects.[2] After witnessing her death, Massimo loses emotional control of himself, going to significantly violent lengths to draw Fugo out in order to kill him and avenge both of his teammates' murders.[5]
Beneath the belt, his legs also have fur trimming, where circlets containing tassels hang.[2]