Jerome Valeska

Gotham is an American crime television series developed by Bruno Heller, based on characters appearing in and published by DC Comics in their Batman franchise, primarily those of James Gordon and Bruce Wayne.

James Gordon is a war veteran and homicide detective at the Gotham City Police Department in its 1st Grade working to find the man who killed Bruce Wayne's parents and battling the corruption of Gotham City's Police Department. His father was Gotham City's District Attorney before his death in a car accident when Gordon was 13 years old.

In September 2013, it was reported that Fox was developing a TV series centered on James Gordon's early days as a police detective and the origin stories of various Batman villains. In February 2014, McKenzie was cast as the lead character. When describing his character in an interview, McKenzie stated that Gordon "is a truly honest man. The last honest man in a city full of crooked people. He's not an anti-hero, he’s a true hero – but he will have to compromise. McKenzie did not audition for the role. Heller, with whom he had worked before, wrote the role for McKenzie, who described the character as "an old-fashioned hero in an age of anti-heroes. A throwback. Jim's a lawman, that restricts him in some ways. But also means he can become powerful within the system and change things for the better".

After the conflict with Hugo Strange at Arkham Asylum, Gordon left Gotham to find Leslie Thompkins, who had left Gotham. However, Gordon later discovered that she was in a new relationship with Mario Calvi, discouraging him from pursuing her.

Six months later, Gordon is now working as a bounty hunter, forming an uneasy alliance with reporter Valerie Vale. After experiencing a hallucination of his father, Gordon decides to rejoin the department.

Harvey Bullock is a detective who is Gordon's loyal partner and ally. Bullock is a seemingly corrupt and brutish detective who has gradually become loyal to Jim Gordon.

At the beginning of the second season, Bullock resigns from the police force, but rejoins following the Maniax attack on the GCPD. After Gordon is framed for the murder of Carl Pinkney, Bullock enlists Carmine Falcone to help break Jim out of prison. After Captain Barnes is hospitalized after an attack by Azrael, Harvey is declared the de facto Captain until further notice and is trusted by Jim to protect Gotham after new threats emerge while he is away.

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Wikipedia