Black Mask

"'Laugh, Power Slut! I'll tickle you to death if I have to! You will be mine!' -Black Mask as he begins tickle torturing Power Girl to death"

Roman Sionis, also known as Black Mask, is a criminal mastermind, enthusiastic sadist, and a primary antagonist in the series.

His son Richard later takes up the mantle of the Black Mask, becoming a main villain in The Next Generation.

One of the first crime lords to seize complete control of Gotham City, Roman Sionis was born into a wealthy family but was raised by abusive, selfish, and neglectful parents. Finally reaching his breaking point, Roman set fire to his family mansion, completely burning it to the ground and murdering his parents at the same time. Left with their massive fortune, Sionis embezzled his inheritance money and started numerous lucrative business ventures, which he eventually used as a front for illegal operations, such as torturing and murdering women in an attempt to get a girlfriend. After carving a mask from the black wood of his father's coffin, Roman became known to the criminal underworld as The Black Mask, a sadistic and vicious mass murderer, and crime boss, using the mask as inspiration to create and recruit a massive gang known as the False Facers. However, over the years, Black Mask's power and control became diminished as other villains took over pieces of his fallen empire, which started with the Joker, the villain who destroyed his empire to begin with and took over his operations and henchmen.

Biography
Black Mask first appears in a torture room, cutting a bound and gagged woman with a knife, laughing as she lets out muffled shrieks while squirming in her restraints. After a while, he gets bored and stabs her in the chest, killing her instantly before telling his henchmen to dump the body out back with several others.

He later kidnaps Stephanie Brown, and sadistically tortures her, breaking her legs, arm, and having his men viciously and ruthlessly assault her to the brink of near death, but he spares her to send Batman a message.

Later in the series, he becomes sexually obsessed with Power Girl. He abducts her and uses a tickle table to torture her in an attempt to psychologically break her. Despite the painful tickle torture Power Girl endures until he uses the table's tickling tongues to lick tickle her armpits and boobs for three whole days, breaking her hard.

After this, Hulk finds out about Power Girl's mind-shattering tickle abuse, and beats Black Mask to death.

Personality
Black Mask is a cruel sadist who takes pleasure in other people's pain especially women. He also treats his henchmen poorly, yelling at them and even shooting them for minor annoyances.

Appearance
Black Mask is a attractive man of average build and height, but his face is always covered by his signature mask so his identity remains anonymous to some people.

Trivia

 * He seems to enjoy tickling, as shown when he viciously tickles Power Girl with a tickle table, nearly killing her.