He provided voice acting for three installments of The Elder Scrolls: Morrowind, Oblivion, and Skyrim. He voiced Lucien Lachance, the Gray Fox, the Arena Announcer, Sheogorath, Hermaeus Mora, Emperor Titus Mede II and was the default voice for Imperial males in Oblivion. In 2014, Johnson reprised the role of Sheogorath for the YouTube series Elder Scrolls Lore by the channel ShoddyCast. Later in 2015 he voiced the super mutant King Ludd as well as Scribe Bigsley in ShoddyCast's The storyteller: A Fallout Lore Series.