Oliver Grigsby is an episode and graphic novel writer for Heroes. He was also a script coordinator during Season One, and was promoted to be a writers' assistant during Season Two. In Season Three he was also an episode writer and wrote the episode Shades of Gray. Ollie also helped write the Slow Burn webisodes with Zach Craley, Jim Martin, Foz McDermott, and Harrison Wilcox. As of 2nd November, Oliver Grigsby will be a staff writer.