A male Viking with a thin and small build compared to his peers. He has a strong sense of responsibility and is gradually growing into a leader. He always carries a sword with a flaming blade. Dragon: Toothless Species: Night Fury Attack: Plasma Blast

A female Viking with blonde hair and sharp eyes. She is very strong-willed and competitive. She always carries an axe. She has a tense rivalry with Heather. Dragon: Stormfly Species: Deadly Nadder Attack: Continuous breath and tail spine attack

A female with a sharp, calm impression and dark-toned clothing. She is highly independent and tough. She carries a double-bladed axe that looks like two handles joined together. She has betrayed the Riders for some reason. She has a tense rivalry with Astrid. Dragon: Windshear Species: Razorwhip Attack: Blue fire continuous breath and tail spine attack

A male with a chubby build and a gentle impression. He is very intelligent and knowledgeable. He has no main weapon, though he occasionally carries a very small dagger. Dragon: Meatlug Species: Gronckle (Immune to Dragon Root arrows) Attack: Lava

A male with a muscular build and a confident attitude. He brags a lot and is full of bravado. He has no main weapon but occasionally carries an axe. Dragon: Hookfang Species: Monstrous Nightmare Attack: Continuous fire blasts

A male who serves as the loud, exaggerated troublemaker of the group. He is overly boastful and confident. He has no specific weapon but occasionally carries a hammer. Dragon: Belch Species: Hideous Zippleback (Has two heads; he rides one side with Ruffnut) Attack: Spark (Explodes when meeting gas)

A female with a rough and wild image. She is eccentric and unpredictable. She has no specific weapon, occasionally using a sword. Dragon: Barf Species: Hideous Zippleback (Has two heads; she rides one side with Tuffnut) Attack: Gas (Explodes when meeting sparks)

A male genius strategist who hunts dragons. He is Hiccup's greatest rival and a villain who engages in a battle of wits.

A male combat-oriented villain who pushes through with strength and violence. He is Viggo's older brother and a leader of the Dragon Hunters.

A male combat-oriented hunter leader who goes berserk with a madness and obsession for dominating dragons. He is Heather's biological older brother.