Mike Brooks
Mike has written some rather fine Necromunda stories for Black Library and looks like a man who's father fucked a particulary goth looking parrot. If his mohawk and punk band are any indication, he certainly fits the part of a writer of Grimdark fiction.
Previously published sci-fi author, massive fan of the game. Has an appropriately massive 40K army and a dick bigger than ADB but not as big as Dan Abnett's.
He's one of the new wave of authors that came after they fired Laurie Goulding
Recently he has written the 40k novel "Rites of Passage" which has come under fire from "fans" due to inclusive considerations such as characters with non-traditional genders and neopronouns in the novel. These are in-line with BL's guidelines (especially for ad-mech) as it's more sci-fi.
He is not Danie Ware