Balin: Son of Fundin, he is the eldest of the dwarves (besides Thorin) and acts as the wise advisor to Thorin. Dwalin: Brother of Balin, he is a formidable, strong warrior known for his fighting skills. Fíli & Kíli: Brothers and nephews of Thorin. They are the youngest, acting as scouts, and are killed defending Thorin. Óin & Glóin: Cousins to Balin and Dwalin. They handle fire-making and fire-starting for the group, with Glóin being the father of Gimli. Dori: Considered the strongest of the dwarves, he often looks out for Bilbo and Ori, a "decent fellow despite his grumbling". Nori: Often found with Dori and Ori; described as a sharp-witted and somewhat sneaky dwarf. Ori: The youngest of his particular group of brothers; he is a skilled writer who keeps notes on the journey. Bifur: Descendant of the dwarves of Moria, known to be fierce in battle. Bofur: Brother to Bombur and cousin to Bifur; he is cheerful and sometimes carries Bilbo. Bombur: Known for being overweight, he is mostly concerned with food and sleeping, but is a capable member.

Thorin Oakenshield is the proud, stubborn, and noble leader of a dwarven company in J.R.R. Tolkien's The Hobbit, driven by the ambition to reclaim his homeland, Erebor (the Lonely Mountain), and its vast treasures from the dragon Smaug. He is portrayed as a tall dwarf with long, dark, wavy hair, grey streaks, and blue eyes, though his demeanor shifts from courage to possessiveness, marked by the "dragon-sickness". A skilled warrior, Thorin is fiercely loyal but can be suspicious and selfish.

Bilbo is a 3-foot-tall, middle-aged Hobbit with curly brown hair, large hairy feet, and a penchant for waistcoats, comfort, and safety. he possesses a conflicting "Tookish" side that leads him to unexpected bravery and cleverness during his adventures.

Smaug was a fearsome fire-drake and the primary antagonist in J.R.R. Tolkien's 1937 novel The Hobbit, considered the last great dragon of Middle-earth. Driven by insatiable greed, he laid waste to the Dwarf kingdom of Erebor and the nearby town of Dale, claiming their immense treasure for himself.