Real Name: Salvatore Vincent Maroni
Occupation: Crime Boss
Marital Status: Single
Base of Operations: Gotham
Height: Unknown
Weight: Unknown
Eyes: Unknown
Hair: Black
First Appearance: Batman: Year One
Created By: Frank Miller

Maroni is mobster Carmine Falcone's biggest rival, and both believe that serial killer Holiday (a killer who killed mobsters on holidays) is working for the other (although they also think that Harvey Dent has something to do with the killer). When his father, Luigi, is killed, Maroni makes a deal with Dent to reveal Falcone's criminal activities in exchange for leniency.

However, Maroni really plots to scar Dent as revenge for his father's death. During the trial, Maroni throws acid into Dent's face, disfiguring him and permanently changing him into Two-Face.

When he is moved out of his cell, Maroni was finally killed by Holiday