Damian Hart

is the team leader of the USA representative team "Starbreaker, who also works for Dr.Ziggurat at HD Academy.

Damian has blue hair. he has gold armor worn on top of a white top.

Personality
Damian was first introduced near the end of Metal Masters as a ruthless, powerful, partially sadistic and unforgiving blader. He seemed to take a liking towards sending opponent's Beys into the evil land of Hades, or attacking them to discourage them and making them think that there's no hope left.

Damian underwent a mental psychotic breakdown after Kyoya defeated him in a battle as if that was the first loss he ever encountered, even though he lost to Gingka Hagane not long before.

Plot
As HD Academy is shown for the first time, the scientist, and leader of the organization; Dr. Ziggurat is using a device called the "Arrange System". A boy named Damian is shown inside one of those capsule devices, which is brainwashing, and infusing power from Hell Kerbecs into his body.Damian has an evil and cold personality.

After Dr. Ziggurat finished his work on him, he sent Damian to bring Ryuga back to HD Academy, and to test out his new power. At a Beystadium somewhere, he interrupts Tsubasa, and Yu's Beyblade race. He tells both Tsubasa and Yu that he wants to test out his Bey against them, which they accept. Not too long after, an explosion is seen in the background during Masamune and Zeo's battle at the park. Ginga and the others rush to the scene. Upon arrival, devastated, and shocked by what they see... Tsubasa and Yu are majorly injured, and unconscious, along with the sides of Aquila's wheel and the same to libra.

Later, after team starbreakers began their battles in the semi finals of big bang bladers, he battled Julian Konzern. After beating him once, he defeated Julian again, along with Sophie and wells. During the battle, it is shown that his bey came from the gates of Hell. In the final round, although he seemed to have Gingka cornered, he lost to Gingka. Later, at HD academy, he lost to Kyoya. Damian is the only blader shown to be unknown in metal fight beyblade 4d.

Beyblade: Metal Fury
Although Damian does not appear physically in Metal Fury, his silhouette is visible in the alleged legendary bladers. In the end, it turns out that he is not one of them.

Beyblade

 * Hades Drive: Damian's first Special Move, Damian first used it in episode 39 of Beyblade: Metal Masters. It is nicknamed the furnace of Hades because Kerbecs circles the stadium creating a vortex of flames, swallowing the opponent to incinerate them.
 * Hades Gate: Damian's second Special Move, Damian first used it in episode 39 of Beyblade: Metal Masters. It summons a giant Gate and its gatekeeper; Kerbecs to swallow the opponent and transfer them into Hades.

Beyblade: Metal Masters

 * 037. The Compass of Fate: Byxis
 * 038. The Wicked Peacock: Befall
 * 039. The Guard Dog of Hades: Kerbecs
 * 041. The Final Countdown
 * 042. The Dragon Emperor Decends
 * 043. Spirit's Last Battle
 * 044. Showdown! Gingka vs. Damian
 * 045. The Miraculous Spiral Force
 * 047. The Fallen Emperor (Flashback)
 * 048. Befalls Trap (Flashback)
 * 049. The Wild Beast Unleashed
 * 051. Galaxy Heart