He is Valkyrie Cain's ex-boyfriend and has helped her with several of her missions, possibly the most notable of which being opening a portal to an alternate dimension so that Valkyrie could retrieve Skulduggery Pleasant from the Faceless Ones' realm.
At some point in Fletcher Renn's life, his mother died in a hospital of unknown causes.
Users on Twitter immediately jumped to the conclusion that the man pictured was Chicago rapper G Herbo, 21. Herbo is due to drop his debut album, Herbo meanwhile was quick to respond to the buzz on his Facebook page.
Fletcher is immediately disliked by Desmond because of his "ridiculous hair".
While on their date, the club is attacked by numerous Remnants, who possess everyone except Valkyrie, himself and Stephanie's cousins Crystal and Carol, who see Valkyrie beating up a possessed policeman, the cousins become suspicious and learn about Valkyrie's abilities.
Later, during an attempt to teleport the Remnants to the giant Soul Catcher, Fletcher is possessed by a Remnant himself and physically harms Valkyrie, but is stopped by Caelan before he can do any serious damage.
The Remnant inside him is also the Remnant that causes Darquesse to emerge from within Valkyrie's soul.