Roman Sinois, alias Black Mask

Roman Sionis or other wise known as the Black Mask, is Gotham's most sadistic and powerful crime lord of who was referenced in Batman: Arkham Asylum and appears briefly in Batman: Arkham City. Black Maskwas later promoted as the main villain of Batman: Arkham Origins but this was a campaign to hide the Joker's role in the game.


Voice actor: Nolan North

Following the suspicious death of his multi-millionaire parents in a fire, Roman Sionis inherited their fortune and then went on to bankrupt their company. Saved by a buyout by Bruce Wayne, Sionis came to resent and hate Wayne. Fixated on the concept of masks, Sionis carved one from his father's black coffin and sought revenge; his ensuing battle with the Dark Knight caused his mask to be burnt into his skin, remaking him as the Black Mask. Sionis is now a feared gang leader and one of the most powerful mob bosses in Gotham, with a burning hatred of the Batman.

  • Height: 6ft 1in
  • Weight: 195 pounds
  • Hair Color: Black (seen from the crack at the top left side of his mask)
  • Eye Color: Brown


  • Obsessed with masks
  • Harbors a hatred of Batman and Bruce Wayne
  • Face resembles a black skull
  • Feared and powerful mob boss
  • Skilled marksman, known for his double handguns.


According to Oracle in the Road to Arkham prequel oneshot, Black Mask was involved in a gang war and retreated to Bludhaven, home of Nightwing.


Batman: Arkham AsylumEdit

While Black Mask does not appear in Batman: Arkham Asylum, his original wooden mask is mounted on the wall of Dr. Young’s office in the old Arkham Mansion. A newspaper clipping about Roman Sionis before he became Black Mask also appears on a bathroom cabinet in the Patient Observation room of Arkham Asylum's Medical Facility. Black Mask is referenced in the game in many of the Penitentiary cells, for example, in the cells is a drawing about a little boy and a house on fire, and then the devil rises up and takes the remains, and the boy is happy.

After ArkhamEdit

Black Mask was one of the final criminals to be incarcerated to the prison, attempting to stay on the run and leave Gotham until the flames died down. Unfortunately, his family's steel mill was seized by Joker's forces, much to Roman's anger, and was later driven out of his own land by Quinn and her hyenas. Black Mask also briefly appeared as a juror member in Two-Face's trial against Joker, where, in his anger for stealing his land, voted guilty. Later, Penguin's crew forced him to blow the steel mill sky-high to kill the clown prince, but instead decided to use the explosives given to him by Penguin to blow a hole in the perimeter wall and escape. While operating outside of the prison, Sionis reunited his old gang, including Firefly as his right-hand man, and plotted a raid on all of TYGER's military weapons and to hop a train out of the city as he originally planned. After Lynns disappeared, Roman and his crew were apprehended by Robin and Nightwing and escorted back to Arkham City, now rigged with sentry guns to kill anyone who approached the wall.

Batman: Arkham City Edit

As Bruce Wayne was being admitted to Arkham City, Black Mask was seen as one of the criminals being transferred into the cell block, having finally been recaptured by Tyger Forces. Sionis was busy fending off the TYGER forces with a chair; however, he was eventually detained. Using this to his advantage, the Joker was able to capture Sionis Industries and it was quickly modified into Joker's Funland, Joker's base of operations in Arkham City.

With the growing violence in Arkham City, as the three primary gangs (Joker's, Penguin's and Two-Face's gangs) fighting for control over the city, Black Mask secretly allied himself with the Riddler and slowly built up his forces for his plans to retake Arkham City in the confusion, although he was eventually stopped by Robin. Because of his earlier detainment, parts of his Skull mask were broken off, revealing brown hair underneath.

Challenge MapsEdit

As the Dark Knight was preoccupied with his investigation into Protocol 10, Robin infiltrated Arkham City to investigate Black Mask's activities. After some work, Robin was able to determine the location of Black Mask's hideout and set out to take down Sionis. Robin fought against Black Mask's forces giving him time to escape from Robin aboard a freight train. While in pursuit of him, Robin was forced to fight his way through stray thugs belonging to the various gangs and Mister Hammer of the Abramovici Twins.

In time Robin was able to locate Black Mask and took him into custody.

Psychological Profile (by Dr. Young)Edit

Black Mask

Real Name: Roman Sionis


Psychological Profile: A mild psychopath, Sionis has narcissistic tendencies but the main malady he suffers from is resentful obsession with, of all people, billionaire Bruce Wayne. Sionis is fixated on Wayne possibly due to childhood traumas that he has projected onto the idle playboy. It is difficult to say whether the two actually knew each other as children, or if this is Sionis's invention. However, it is Sionis's criminal activities, and the role playing that resulted in the black skull-like mask accidentally burnt into his skin, that resulted in his committal to Arkham.

Additional Notes

I'd question whether Sionis is actually insane, if not for the choice of his obsession; I can't imagine being interested in (much less stalking) such a pointless personage as Bruce Wayne.


  • When Bruce Wayne sees Black Mask when entering Arkham City, it is likely that this is Black Mask's second time entering Arkham City, as Black Mask was the first and only inmate to ever escape, as revealed by a riddle that unlocks an Arkham City Story. Therefore, the Robin DLC is most likely a second escape attempt.
  • The Penguin may have Sionis's first mask or a replica in his Iceberg Lounge, indicating that Black Mask may at one point have been his main rival.
  • Black Mask's forces are oddly absent during the events of Batman: Arkham City, likely because Sionis was re-entering Arkham City during the game and had no thugs under his control.
  • The small part of his mask that is broken shows an undamaged forehead and some hair, suggesting that either his face had healed at some point or his mask is actually removable.

Game Over LinesEdit

  • "First you fall, then Gotham."
  • "What? Did you think you could beat me? Me?!"
  • "No one goes up against the Black Mask and lives."