James Ryan Haywood is an employee of Rooster Teeth Productions and voices Caboose's lieutenant John Elizabeth Andersmith in seasons 12, 13, and 15 of Red vs. Blue. He also voiced Marlowe in Grey vs. Gray in Red vs. Blue: Season 14. He currently plays Diesel in Red vs. Blue: Zero. Previously, he worked as part of the animation staff for Red vs. Blue: Season 10.
He is well known for his work with Achievement Hunter, alongside Geoff Ramsey, Jack Pattillo, Gavin Free, Michael Jones, Lindsay Jones, and Ray Narvaez, Jr. His other work with Rooster Teeth includes voice acting for Professor Port in the web series RWBY, as well as regular appearances on the gaming podcast The Patch and, its reboot of sorts, "Glitch Please".