David J. Peterson
David Joshua Peterson entered the world on the 20th of January 1981 in Long Beach, California. His father carried German heritage while his mother held Mexican roots. This mixed background formed the foundation of a life that would eventually bridge two distinct worlds. He attended the University of California, Berkeley between 1999 and 2003. There he earned Bachelor of Arts degrees in both English and linguistics. A pivotal moment occurred during his sophomore year when he walked into an Esperanto class in 2000. That single exposure to constructed languages sparked a lifelong obsession. He continued his studies at the University of California, San Diego from 2003 until 2006. There he secured a Master of Arts degree in linguistics. The academic rigor provided him with tools to analyze human speech patterns systematically.
HBO needed a fictional language for their upcoming television series in 2009. They turned to the Language Creation Society for assistance. The network organized a contest to find the right person for the task. David Peterson won this competition against other applicants. He created Dothraki as the primary tongue for the eponymous people of Westeros. He also developed High Valyrian as a literary language once spoken across ancient Valyria. Additional variations emerged including Astapori Valyrian and Meereenese Valyrian. These were descendants of the main High Valyrian dialect. He even designed Mag Nuk for giants but only used it for one line. Unused projects included Skroth for White Walkers and Asshai for the Asshai'i. Lhazareen remained an unused sister language meant for the Lhazareen people. Gerna Mohr was another abandoned effort intended for the Children of the Forest. This single win launched his career into the global spotlight.
Peterson co-founded the Language Creation Society in 2007 with nine other creators. He served as its president from 2011 until 2014. His influence extended beyond professional commissions through educational outreach. He produced a series of videos on YouTube titled The Art of Language Invention. This platform allowed him to teach the public about constructed languages directly. He published a book bearing the same title in 2015. The text detailed the mechanics and philosophy behind inventing new tongues. Peterson worked as an executive producer on the 2017 documentary film Conlanging: The Art of Crafting Tongues. He created a free High Valyrian course on the Duolingo website in 2019. The course expanded significantly when House of the Dragon premiered in August 2022. These efforts democratized access to complex linguistic systems for millions of learners worldwide.
His work expanded into major film franchises starting with Thor: The Dark World in 2013. He invented Shiväisith as the soft speech of the Dark Elves. An alphabet called Todjydheenil existed but was not used within the actual movie. He later designed it after the film release concluded. Peterson created Nelvayu for Doctor Strange as a demonic language used by Zealots. Orcish appeared in Warcraft: The Beginning while Draenei served as the tongue for another species. Övüsi functioned as the Elvish tongue in Bright with its own abugida system. Bodzvokhan became the farmer's language for orcs in that same universe. Santa Claus and Christmas elves spoke Yulish in The Christmas Chronicles films. Kumandran represented the language of Kumandra in Raya and the Last Dragon. Chakobsa emerged as the primary tongue for Fremen in Denis Villeneuve's Dune adaptations. A corresponding sign language accompanied this spoken form. Sardaukar provided meaningless chants for the eponymous force. House Atreides utilized their own distinct sign language throughout these productions.
Peterson built an extensive portfolio across numerous television genres from 2011 to 2025. Castithan and Irathient defined the languages of Defiance with unique writing systems. Trigedasleng served as the forest language for Grounders in The 100. Verbis Diablo formed the vocabulary for witches and demons in Penny Dreadful. Noalath acted as the great tongue for druids in The Shannara Chronicles. Azrán descended from Mexican Spanish within Into the Badlands. He created Hen Linge for elves and mages in The Witcher series. Méníshè functioned as the mother tongue for witches in Motherland: Fort Salem. Ravkan appeared primarily in written form within Shadow and Bone. Sangheili became the Covenant language in Halo alongside Carl Buck. Christian Thalmann co-created Fjerdan while Jessie Peterson assisted on multiple projects. Zemeni and Kerch developed complex abugidas for Novyi Zem and its inhabitants. Kezhwa emerged as a creole language for time travelers in Paper Girls. Aazh Naamori represented the Language of the Moroi vampires. These collaborations demonstrated his ability to adapt to diverse narrative requirements.
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Common questions
When and where was David J. Peterson born?
David Joshua Peterson entered the world on the 20th of January 1981 in Long Beach, California.
What languages did David J. Peterson create for Game of Thrones?
David J. Peterson created Dothraki as the primary tongue for the eponymous people of Westeros and developed High Valyrian as a literary language once spoken across ancient Valyria.
How did David J. Peterson start his career creating fictional languages?
HBO organized a contest to find the right person for their upcoming television series in 2009 and David Peterson won this competition against other applicants.
Which major film franchises feature languages designed by David J. Peterson?
His work expanded into major film franchises starting with Thor: The Dark World in 2013 and he later designed Nelvayu for Doctor Strange while Orcish appeared in Warcraft: The Beginning.
What educational resources has David J. Peterson produced about constructed languages?
He published a book bearing the same title in 2015 titled The Art of Language Invention and created a free High Valyrian course on the Duolingo website in 2019.