List of DC Comics characters: H

Hackett is a character appearing in American comic books published by DC Comics.

Hackett is a former pilot of the Royal Air Force who later became a henchman of the heroin manufacturer China White. Decades prior, he manipulated Oliver Queen into investing in illegal offshore accounts.

Two characters loosely based on Hackett, David "Dave" Hackett and his son Sam Hackett, appear in Arrow, portrayed by Ben Cotton and Luke Camilleri respectively. The former worked as a bodyguard for Robert Queen while the latter is a former minor criminal and electrical engineer. In flashbacks, Dave accompanied Robert on his yacht, the Queen's Gambit, as part of a business trip to China. However, the ship sank and Dave, Robert, and Robert's son Oliver were left adrift on a raft until Robert killed Dave and himself to ensure Oliver's survival. In the present, Sam hacks the DA office's computer and obtains unredacted transcripts of Oliver's therapy sessions, through which Sam discovers his father's fate and plots revenge on Oliver. After Sam hacks Star City's power grid, Oliver attempts to calm him by telling his side of the story, but Sam refuses to stand down until Dinah Drake destroys Sam's machine and Sam is arrested.

Sebastian Hady is a character appearing in American comic books published by DC Comics.

Sebastian Hady was the corrupt mayor of Gotham City, associated with Carmine Falcone, and eventually killed by the League of Shadows.

Sebastian Hady appears in The Penguin, portrayed by Rhys Coiro. This version was a city councilman with a gambling addiction who used public funds to pay off his gambling debts.

Hagen is a character appearing in American comic books published by DC Comics.

Hagen is an Atlantean magic user who was trained by the Atlantean mage Gamemnae. He tried to control Mera before being defeated by Aquaman.