I have to find references to this. I don't own the base design of this. Tail fins at the end and base of the tail are based on the Night Fury.

Dragon Species:
Night Blades (made up X3)

Name: Wheeljack (Jackie)

Human Rider/Best Friend:
Hiccup Horrendous Haddock III

Human Friends:
Astrid
Snotlout
Fishlegs
Ruffnut
Tuffnut
Gobber
Stoick
Heather

Dragon Friends:
Stormfly
Hookfang
Meatlug
Barf and Belch
Sharpshot
Thornado
Skullcrusher
Cloudjumper

Cybertronian Friends:
Ultra Magnus (will appear in RTTE)
Arcee (will appear in Defenders of Berk)
Ratchet (will appear in Riders of Berk)
Bumblebee (will appear in Riders)
Bulkhead (will appear in Defenders of Berk)
Smokescreen (will appear in RTTE)
Knockout (will appear in Riders of Berk)
Optimus Prime (appears constantly as a spirit to guide both Hiccup and Wheeljack)

Enemies:
Red Death (Former)
Hardshell (Hive Shell, made up species) (Yes he's alive in the story)
Dagger the Deranged (former)
Grimborn Brothers
Dragon Hunters
Drago
Grimmel

Goals:
End the Dragon-Viking war (achieved)
Go back home to Cybertron (postponed)
Help Hiccup keep the peace between Vikings and Dragons (currently in progress)