David J. Peterson

! Year

! Title

! Language(s) / Role

| Game of Thrones

|

• Dothraki (Lekh Dothraki), the language of the eponymous people.{{cite news |url=https://www.latimes.com/entertainment/tv/la-et-ca-game-of-thrones-language-creator-david-peterson-dothraki-20190409-story.html |title=How 'Game of Thrones' linguist David J. Peterson became Hollywood's go-to language guy |first=Meredith |last=Blake |date=April 9, 2019 |newspaper=Los Angeles Times}}
• High Valyrian (Valyrio Udrir), a literary language once spoken in Valyria.
• Astapori Valyrian, a descendant of High Valyrian spoken in Astapor.{{Cite web|title=How do you create a real fake language?|url=https://lwlies.com/articles/how-do-you-create-a-real-fake-language/|access-date=2024-04-19|website=lwlies.com|date=March 28, 2023 |language=en-US}}
• Meereenese Valyrian, a descendant of High Valyrian spoken in Meereen.{{Cite web|title=House of the Dragon: How Was the Valyrian Language Created for the Show?|url=https://movieweb.com/house-of-the-dragon-valyrian-language-created-how/|access-date=2024-04-19|website=movieweb.com|date=September 28, 2022 |language=en-US}}
• Mag Nuk ("great tongue"), the language of giants. It was only used for one line.{{Cite web|last=Busch|first=Jenna|title=Pixar's Elemental Recruited A Game Of Thrones Vet To Create A Brand-New Language |url=https://www.slashfilm.com/1310178/pixar-elemental-game-of-thrones-vet-created-language-dothraki/|access-date=2024-04-19|website=slashfilm.com|date=June 13, 2023 |language=en-US}}
• Skroth ("ice"), an unused language that was meant to be spoken by the White Walkers.{{Cite web|title=Game Of Thrones' Failed Pilot Would've Actually Made White Walkers Better |url=https://screenrant.com/game-thrones-white-walkers-language-skroth-original-pilot/ |access-date=2024-04-19|website=screenrant.com|date=March 8, 2022 |language=en-US}}
• Asshai, an unused language that was meant to be spoken by the Asshai'i.{{Cite web|title=David J. Peterson on creating languages for the White Walkers and the people of Asshai |url=https://winteriscoming.net/2017/05/19/david-j-peterson-interview-white-walkers-ghiscari/ |access-date=2024-04-19|website=winteriscoming.net|date=May 19, 2017 |language=en-US}}
• Lhazareen, an unused sister language of Dothraki that was meant to be spoken by the eponymous people.{{Cite web|last=Watel|first=Stephanie|title=Game of Thrones' Linguistics Veteran Hired to Create Language For Pixar's Elemental |url=https://movieweb.com/game-of-thrones-vet-hired-to-create-language-for-pixars-elemental/ |access-date=2024-04-19|website=movieweb.com|date=June 13, 2023 |language=en-US}}
• Gerna Mohr (or Gerna Moussha), an unused language that was meant to be spoken by the Children of the Forest.

| Defiance

|

• Castithan (Kastíthanu), the language of the eponymous species. It has its own abugida called Fajizwalino.
• Irathient (Thwelu l'Irathi), the language of the eponymous species. It has its own abugida called Izra.
• Indojisnen, the language of Indogenes. It has its own syllabary called Hazugimari.
• Kinuk'aaz ("our language"), the language of the Omec. It has its own alphabet called Zaduusel.
• Yanga Kayang, an unused language that was meant to be the Liberata's.

| Star-Crossed

| Sondiv, the language of the Atrians. It has its own abjad called Kwandon.

| Dominion

| Lishepus, a language invented by the angels to prevent humans from understanding them. It is based on Proto-Indo-European and Proto-Afroasiatic roots. Peterson also translated a few lines into Akkadian for one episode.

| The 100

| Trigedasleng ("forest language") or Trig, the language of the Grounders. It is a descendant of a cryptolect based on American English.

| Penny Dreadful

| Verbis Diablo (or Verbis Diabolo), the language of witches and demons. Its vocabulary is based on Classical Arabic, Akkadian, Middle Egyptian, Attic Greek, Latin, Persian and Turkish.

| Face Off

| Guest judge.

| The Shannara Chronicles

| Noalath ("great tongue"), the language of druids.

| Emerald City

|

• Inha ("we"), the language of witches. It has four varieties (referencing the four countries of the Land of Oz), called Water Inha, Fire Inha, Wind Inha and Stone Inha.
• Munja'kin, the language of the eponymous people.

| The Defenders

| Written Tibetan translation.

| Into the Badlands

| Azrán, a descendant of Mexican Spanish spoken in Azra.

| Iron Fist

| Written Tibetan translation.

| Another Life

| Achaian, Tala and Decuma, three asemic syllabaries. Peterson worked on this show with Claire Ng.

| The Witcher

| Hen Linge ("elder speech"), the language of elves and mages. It has its own alphabet called Hen Wökina.

| Euphoria

| Dothraki lines.

| Motherland: Fort Salem

| Méníshè ("mother tongue"), the language of witches. A language derived from Méníshè and spoken by Camarilla members was also used for one line, and an ancient form of Méníshè appears in season 3. Peterson created all three languages with Jessie Peterson.

| Lovecraft Country

| Language of Adam. Peterson created a writing system for this show in collaboration with Claire Ng, but it was not used.

| Mr. Mayor

| Dothraki lines. Uncredited.

| Shadow and Bone

|

• Ravkan (Ravkaye Vyechost), the language of Ravka, which mainly appears in writing as it is rendered as English in most of the scenes where it is spoken. It has its own alphabet called Im Shaliloriyi. An older form of Ravkan was also used for one line.
• Fjerdan, the language of Fjerda. Peterson created this language with Christian Thalmann.
• Kerch, the abugida of Kerch. It does not have an associated conlang, instances of written Kerch are actually coded English texts.
• Kerch sign language.
• Zemeni, the language of Novyi Zem. It has its own abugida called Isunuche Zemen. Peterson created this language with Jessie Peterson.
• Shu, the language of Shu Han. It has its own alphabet called Shighraad Shu. Peterson created this language with Jessie Peterson, and its writing system was created by Christian Thalmann.

| From

| Background dialogue lines for the creatures. Peterson worked on this show with Jessie Peterson, both are uncredited.

| Halo

| Sangheili, the language of the Covenant. Peterson created this language with Carl Buck.

| House of the Dragon

| High Valyrian (Valyrio Udrir) lines, as well as a new logoconsonantal script called Nekesse Valyrio for this language.

| Paper Girls

| Kezhwa, a creole language spoken by time travelers. It was only used for one line. Peterson created this language with Jessie Peterson, both are uncredited.

| Vampire Academy

| Aazh Naamori ("Language of the Moroi"), the language of vampires. It has its own abugida. Peterson created this language with Jessie Peterson.

| The Witcher: Blood Origin

| Hen Linge lines and texts.

! Year

! Title

! Language(s) / Role

| Thor: The Dark World

| Shiväisith ("soft speech"), the language of the Dark Elves. It has its own alphabet called Todjydheenil, which was not used in the film, Peterson invented it after the film was released.

| Warcraft: The Beginning

|

• Orcish, the language of orcs.
• Draenei, the language of the eponymous species. It was only used for one line.
• Common, an unused language that was meant to be the humans'.

| The Bad Batch

| Dialect coach.

| Doctor Strange

| Nelvayu, a demonic language the Zealots use for incantations.

| Conlanging: The Art of Crafting Tongues

| Executive Producer.

| Bright

|

• Övüsi (Övüsi Kieru, "Elvish tongue"), the language of elves. It has its own abugida. An older form of Övüsi was also used for one line.
• Bodzvokhan (Bodzvokhan Dǝzhn, "farmer's language"), the language of orcs. It has its own abjad called Vukht as well as a Cyrillic alphabet.

|

• The Christmas Chronicles
• The Christmas Chronicles 2

| Yulish, the language of Santa Claus and the Christmas elves.

| Raya and the Last Dragon

| Kumandran,{{Cite web|url=https://sg.style.yahoo.com/what-we-know-about-raya-and-the-last-dragon-so-far-045101477.html|title=What we know about Raya And The Last Dragon so far|last=Lee|first=Reta|website=yahoo|language=en-US|access-date=2021-02-21}} the language of Kumandra. It was only used for one line and a few untranslated words in English lines.

| The Witcher: Nightmare of the Wolf

| Hen Linge lines and texts.

|

• Dune
• Dune: Part Two

|

• Chakobsa, the language of the Fremen, as well as the corresponding sign language. It has its own abugida called Dinlih.
• Sardaukar, the language of the eponymous force. It was only used for meaningless chants.
• House Atreides' sign language.

| Elemental

|Firish (Tsʼítsʼàsh), the language of the fire elements. It has its own syllabary,{{cite web | url = https://www.tumblr.com/dedalvs/720308170808066048/the-ts%C3%ADts%C3%A0sh-firish-language-from-elemental | title = The Ts'íts'àsh (Firish) Language from Elemental | last = Peterson | first = David J. | date = June 16, 2023 }} which was not used in most of the film as a different alphabet was also used more often to write coded English. Peterson created this language with Jessie Peterson.{{cite web |url=https://dedalvs.tumblr.com/722128532099284992 |title=Ts'íts'àsh Language from Elemental |website=Imeimei (David J. Peterson's Tumblr) |last1=Peterson |first1=David J. |author-link=David J. Peterson |date=July 6, 2023 |access-date=July 6, 2023 |via=Tumblr |quote=While this is my Tumblr (so I'll be answering asks, etc.), I didn't create the language by myself. Jessie Sams and I created the language together. [...] If you've sat through the credits of Elemental, you'll see that only I'm credited. That was, in a word, bullshit...who gets credited—or whether we get credited at all—is totally at the mercy of the studio. Even when it's written into our contract it sometimes doesn't happen [...] Anyway, in this case, it's really important to me that everyone knows this was a joint project of mine and Jessie's. It's our work, and we deserve equal credit.}}

| The Witcher: Sirens of the Deep

| Roozh Linge ("deep speech"), a sister language of Hen Linge spoken by merfolk.

! Year

! Title

! Language(s)

| Arena of Valor

|

• Veda, the language of the inhabitants of Veda. It has its own abjad called Welqor ("stack-mark").
• Afata, a descendant of Veda spoken by the eponymous people. It has its own abugida called Thala ("vine").
• Gandal ("impure language"), a descendant of Veda spoken by humans. It has its own alphabet called Shul ("pure").
• G'vunna (Zudǝllǝ g’Vunnǝ, "language from the abyss"), a descendant of Veda spoken by Lokheim. It has its own alphabet called Oz ("blade").

The scripts were only made for promotional purposes, none of them were used in the game.

! Year

! Title

! Language(s)

| Lampedusa (Eduardo Reck Miranda)

| Vōv ("love"), a language spoken on Ariel's island.

! Year

! Title

! Language(s)

| WeCameToDance (Food Tank)

| Hanyana, a language spoken by aliens from the eponymous planet.{{Cite web |date=2021-01-01 |title=WeCameToDance |url=https://foodtank.com/wecametodance/ |access-date=2023-11-06 |language=en-US}}

! Year

! Title

! Language(s)

|

• The Zaanics Deceit
• The Zaanics Pursuit

| Væyne Zaanics ("God's gift" or "God's curse"), a secret language invented by the Lyrs and the Severns. It has its own cipher alphabet called Yesuþoh. Peterson created this language with Nina Post.