How to Train your Dragon 3 is an upcoming 2019 film
In this epic finale, Hiccup and Toothless are back and on this last adventure when Hiccup fulfills his dream of creating a peaceful dragon utopia, learns that Toothless's flame is starting to go out and the only way it can be saved is if Toothless mate with a female Night Fury. So Hiccup along with Astrid, Valka and the rest of the gang go on this journey, along the way they need to prevent all of Berk from being destroyed by a large species of Dragon and an evil witch named Excellivor, with the help of a herd of Night Furies. However Hiccup’s reign as village chief is tested, both dragon and rider must make impossible decisions to save their kind.
- Jay Baruchel as Hiccup Horrendous Haddock III, The brilliant son of Stoick and Valka and is the current leader of Berk, He rides his best friend, Toothless, a male Night Fury who became the Alpha leader of the Dragons.
- Gerard Butler as Stoick the Vast, the former leader of Berk, Hiccup's father and Valka's husband, He rides Skullcrusher, a male Rumblehorn. Due to the events of the second film and his death, he lost all his memories after being revived by Excellivor but restored.
- Cate Blanchett as Valka, Hiccup's mother and Stoick's wife, she is a former dragon rescuer and rides Cloudjumper, a male Stormcutter who accidentally carried her off in a raid twenty years earlier before the events of the first and second film now is living on Berk.
- America Ferrera as Astrid Hofferson, Hiccup's Girlfriend and future wife. She rides her dragon Stormfly, a female Deadly Nadder.
- Craig Ferguson as Gobber the Belch, Stoick and Valka's closest friend and an old seasoned Viking warrior who became a Dragon dentist. He rides Grump, a male Hotburple. He remains as one of Hiccup's confidant in the film.
- Jonah Hill as Snotlout Jorgenson, the self centered hotshot of the group, He rides Hookfang, a male Monstrous Nightmare.
- Christopher Mintz-Plasse as Fishlegs Ingerman, The smartest person in Berk, He rides Meatlug, a female Gronckle.
- T.J. Miler and Kristen Wiig as Tuffnut and Ruffnut Thorston. The quarrelsome twins who share and ride on the heads of Barf and Belch, a male Hideous Zippleback.
- Kit Harrington as Eret, Son of Eret, a former dragon trapper and Ruffnut's love interest. He rides Nightshade, a recently discovered female Night Fury.
- Helea Mirren as Excellinor, she is an evil warlord and powerful witch who seeks to destroy all dragons by enslaving the world and is the main antagonist, she is also the founder/owner of Drago's army.
- Djimon Hounsou as Drago Bludvist, He is a madman from the second film and his faith wil determined after the battle of the events of the second film.
- Dave Bautista as Rinko, Excellinor's second in command and secondary antagonist.
- Graig Robinson as Ghastly, a Terrible Terror in human form and Tephys's assistant.
- Zackary Arthur as Ethan, a little boy who was orphaned by Excellinor's attack, join Hiccup and Stoick on helps them keep the Night Furies dragons from Excellinor.
- Billy Connolly as Tephys the Deegan, a Soothsayer and one of Excellinor's captured slaves.
- Octavia Spencer as Allium, Drago Bludvist's wife who was thought to be killed by a dragon attack along with her son and daughter.
- Kenzo Lee Hounsou as Cato, Drago Bludvist's youngest son who was thought to be killed by a dragon attack along with his mother and older sister.
- Taylor Swift as Mayu, Drago Bludvist's older daughter who was thought to be killed by a dragon attack along with her mother and youngest brother.