Artha Tannis Penn
Artha is the eponymous hero of Dragon Booster, an ordinary 16 year old teenager who helped his father run the dragon stables at Penn Racing and dreamed of a life writing vid games. Probably as a result of a lifetime of stable chores, he wanted nothing to do with dragon racing and little to do with dragons. But that all changed when he was chosen by Beau, the gold dragon of legend, to be the Dragon Booster. Now he and Beau are charged with the task of saving the world from an impending dragon-human war and uniting dragons and humans once and for all time.
- Big Brother Instinct: For Lance. Bonus points for them being actual siblings.
- The Chosen One: specifically, he was chosen by Beau.
- Eyes of Gold: Occasionally while Dragon Booster, to reflect his connection to Gold Draconium.
- Jerk with a Heart of Gold: He can be brash, egotistical and overconfident in his abilities, but there's no denying that he's ready to face any danger to protect his friends.
- Named After Somebody Famous: Say his name a few times and think British Folklore.
- Promoted to Parent: After Conner disappears.
- Translator Buddy: For Parm and his Sesquipedalian Loquaciousness occasionally.
Parmon (or just Parm, as his friends call him) is Artha's best friend. At age 17, Parmon is a technical wiz, though sometimes the things he builds don't quite work out or last as long as they should in theory. Parm is not exactly the bravest member of the Penn Racing team and would much prefer to run and avoid fights. However, if his friends are threatened, he doesn't hesitate to come to their aid.
- Ambiguous Disorder: Could easily be argued as autistic; he stims in the form of bouncing his leg and rocking in one episode, is socially awkward, has several special interests that he knows a lot about and infodumps constantly, even when he's under the influence of the Samurox map.
- Beware the Nice Ones: "You can only push Parmon Sean so far!"
- Specifically in "Professor Stubborn" — it seems that being chased by dangerous wild creatures, trapped in an ancient temple, and forced to helplessly watch his friends disappear is what it takes to get him to fight back without fear. He even reels off a Badass Boast or two; "Bring it on! (...) I'm not going! Do you hear me?! I'm not leaving my friends!"
- Ditzy Genius
- Embarrassing Nickname: Artha will occasionally call him 'Parmesan', as derived from his full name.
- Gadgeteer Genius: The team's go-to guy for fixing and inventing new gear.
- Goofy Print Underwear: Has pink atom printed boxers as shown in 'Three Times A Hero'.
- Nervous Wreck
- Renaissance Man: Knows everything from gear to draconium to the history of Dragon City.
- Sesquipedalian Loquaciousness
- Signature Sound Effect: Although other characters will use the chicken squawk sound effect to indicate surprise or panic, it's mostly associated with Parm (mostly due to his Nervous Wreck status).
- Smart People Speak the Queen's English: Has the only British accent in the entire cast.
- Team Mom: Fusses over and worries about the rest of the Penn Stables crew, especially Lance and Artha.
- Techno Babble: One of his defining traits.
- Took a Level in Badass: In "Professor Stubborn" and possibly in future seasons as he becomes the Power Booster.
Kitt Raada Wonn
At 16 years of age, Kitt is one of the best street racers in Dragon City. She and her dragon Wyldfyr form a strong team that's difficult to beat on the race track. Kitt is sure of herself, strong minded and a bit feisty. She believes in Artha and wants to help him prevent the dragon-human war in any way she can.
- Action Girl
- Anime Hair: In regards to both the colour and her gravity-defying ponytail.
- Big Sister Instinct: For Lance.
- Cool Big Sis: Also to Lance, and arguably the rest of the Penn crew.
- Leitmotif: One of the few, if only, characters to have a particular music motif.
- The Nicknamer: 'Stable Boy' for Artha and 'Professor' for Parm.
- Vitriolic Best Buds: With Artha, although the sniping can get a little too genuine sometimes, due to her Hot-Blooded status.
Lance Patrik Penn
Lance is Artha's little brother. When Artha gets into a tight spot, Lance will help out any way that he's able. But he's still a kid at heart and enjoys playing vid games and occasionally teasing his older brother (and perhaps causing a little mischief as well). Like most kids his age, Lance is trying to grow up, but is occasionally frustrated when the older teenagers won't take him seriously or listen to what he has to say.