Benjamin Boom Boom

Benjamin Boom Boom (ベンジャミン・ブンブーン) is a minor antagonist featured in Steel Ball Run.

He is the patriarch of the Boom Boom Family and father of Andre and L. A.. Benjamin Boom Boom is one of the racers of the Steel Ball Run. He and his sons attempt to lure Johnny Joestar and Gyro Zeppeli into an ambush to collect a mysterious bounty on the latter's head.

Benjamin is a Stand User, sharing Tomb of the Boom between him and his two sons; each of which is able to utilize a different effect while in control of the Stand.

Appearance
Benjamin appears like a big middle-aged man in his late forties and wears a hooded cloak covered with a dotted design. His most peculiar feature is the metallic apparatus covering the bottom of his face, which he can sink inside his face to change facial features.

Personality
Benjamin is a murderous and greedy man, who targets other competitors in the Steel Ball Run to get ahead and obtain the prize money.

Benjamin is very aggressive, constantly shouting at his sons (especially L.A.) and badmouthing his wife. Although he protects his sons using his Stand as a shield, he pays no mind to the agonizing Andre and leaves him alone. He seems to hate the mother of his children, who supposedly abandoned the family to "be a whore".

Abilities
Tomb of the Boom grants every member of the family the ability to manipulate iron different ways. Benjamin manipulates pieces of iron by putting them under his skin, allowing him to change the appearance and hide weapons.

History
At some point, Benjamin married a woman and they had two sons together, Andre and L. A.. Eventually, Benjamin's wife abandoned their family, likely after cheating on her husband with someone else and running away with them based on what Benjamin says about her.

Sometime during their lives, prior to the Steel Ball Run race, the three remaining Boom Boom family members gained their Stand, Tomb of the Boom. Although unconfirmed, Mountain Tim theorised that they likely manifested it due to an encounter with a Devil's Palm like himself.

Shortly before the Steel Ball Run race, the family accepted a bounty set by an unknown party from the Kingdom of Naples to kill Gyro Zeppeli. They then entered the race together to collect said bounty.

Steel Ball Run
After his son, Andre, tricks Gyro Zeppeli and Johnny Joestar and manages to transform the first into a human magnet, Benjamin and L.A. attack them unsuccessfully. Benjamin, however, manages to exploit Andre's power in a diabolic way: by shooting at him, he manages to drop some of his son's blood on Johnny, therefore turning him into a magnet as well.

By assuming Johnny's identity, he manages to magnetize Mountain Tim too: his plan is to make the three of them approach and be killed by the magnetic power of the Boom Boom family. However, it fails when Mountain Tim uses his Oh! Lonesome Me to tie himself to a rock. Forced into close combat, he ultimately manages to make his three enemies gather, but Johnny develops Tusk at the last moment and cuts him in half.