Viggo Grimborn

Long light hair braided into three braids; blue eyes; knows a lot; restless, just like her brother, can cause the apocalypse;
Zabiyaka's Dragon: A two-headed dragon named Bars and Vepr. Zabiyaka rides the one named Bars.

Long light hair braided into dreadlocks; grey eyes with brown spots; knows a lot, but everyone considers him an idiot, restless, can create real chaos;
Bully's Dragon: A two-headed dragon named Bars and Vepr. Bully flies, but the one named Vepr flies.

Black, fairly long hair; blue eyes; narcissistic, boastful; Viggo can't stand him because of his character;
Snotlout's Dragon: A terrifying monster named Crooked.

Short blond hair; green eyes; chubby; good-natured, gentle, a little cowardly;
Fishlegs' Dragon: A grommel named Sausage.

Blonde, hair in a complex braid, straight bangs; blue eyes; militant, straightforward; in love with Hiccup; hates Viggo.
Astrid's Dragon: An evil dagger named Stormfly.

Thick, slightly tousled dark hair; green eyes; thin, but fights well; impulsive, but can use strategy; in love with Astrid;
Hiccup's dragon: a night fury named Toothless.

One eye is brown, the other is white with a blue tint due to a lava burn; this burn is on the face from the ear to the hair, the bridge of the nose and the cheek; dark short hair and a beard; a scar on the neck from "dragon claws" (this cannot be from dragon claws for many reasons).