Richard Sionis

Richard Sionis/The Mask is the main antagonist of the Gotham episode "The Mask."

A rich businessman and owner of Sionis industries, before hiring any new employees, he forced them to take part in all out brawl inside an abandoned building, mostly for his own entertainment. The last man standing would get the job. Though it didn't have to be to the death, he cared nothing if it was and at least four people died in his previous fights.

He will make an appearance in the second season in which he is seen being held at Arkham Asylum.

History
One of the bodies, from his previous fights washed up on the docks. Upon investigating, Nygma found the victim had bitten off his attackers thumb, this led to Jim Gordon and Harvey Bullock investigating. Going to Sionis industries, they noticed all his employee's had scars or cuts.

Confronting Richard himself, he gave a talk romanticizing combat and bloodshed itself and how he believed it took a similar killer instinct to achieve in business, something which Jim Gordon (himself a war veteran) was not impressed with.

Later while investigating one of the buildings where he supposedly had fights, Richard's goons got the drop on Gordon and captured him. Interested in seeing the fire in Gordon, Richard set three potential candidates against him promising them the job and a million dollars bonus for killing Gordon.

However Gordon managed to beat them, Richard himself attacked armed with a Katana, but was no match for Gordon. He was defeated, and was later incarnated in Arkham Asylum for over 20 murders.

Trivia

 * He is based off the character of Black Mask/Roman Sionis from the comics. it is unknown whether or not Richard is related to a Roman Sionis in the Gotham universe.