Black Mask (Arkham Series)

Roman Sionis, better known as the gangster Black Mask, is the main antagonist of LEGO Arkham: The Series. He is a major inmate at Arkham Asylum, who develops a rivalry with the warden, Dr. Jeremiah Arkham.

History
Roman Sionis was born in Gotham on the 15th May, 1959. Moments after his birth, his father dropped him, due to his lack of experience with caring for infants. However, his father only cared about possible damage to his heir and his reputation, and so blamed the timid doctor.

On his third birthday, while on a picnic, Roman wandered away from his parents, only to be attacked by a savage raccon. As his mother rushed to his aid, his father seemed to be uninterested in him, possibly because he believed that Roman had been permanently damaged at birth, so thought that he would be an unworthy heir.

In 1977, Roman's parents died in a fire that consumed the family estate. Roman only cared about his inheritance, which included his father's company, "Sionis Industries." Unfortunately, within three years, he had lost much of his fortune and the company's stock was plummeting. Roman was forced to sell his company to Thomas Wayne, which caused him to hold resentment towards the Wayne family.

From Comics to Arkham
Much of Black Mask's early history is identical to his comic-book origins, from his birth to the loss of his company. However, in the comics, he lost his company to Bruce Wayne, rather than Thomas Wayne. Also, CJ Fairman says that Sionis gets involved in a mafia war in the 1980s, which would result in him becoming Black Mask. He is also going to be protrayed as a "Hannibal Lector"-like character to Dr. Arkham.