Clive "DJ Kool Herc" Campbell is a character in The Get Down and is played by Eric D. Hill Jr,
DJ Kool Herc is credited with originating hip hop music in the early 1970s in The Bronx, New York City. He serves as a mentor for the Notorious Three (The Herculoids). He is the prominent leader of the get down in the West Bronx.
Campbell began to isolate the instrumental portion of the record, which emphasized the drum beat the "break" and switch from one break to another. He used two copies of the same record to elongate the break.
Campbell's announcements and exhortations to dancers helped lead to the syncopated, rhymed spoken accompaniment now known as rapping. He called his dancers "break-boys" and "break-girls", or simply b-boys and b-girls. Campbell's DJ style was quickly taken up by figures such as Grandmaster Flash. He is based on the historical figure of the same name.