Wielder of the shadow staff. She's kind and strong and cares deeply for her friends and family, even her changeling brother. She's smart and was a straight A student until she became a trollhunter. She's Jim's girlfriend and they would die for each other and have risked their lives for the others benefit before.

Jim's best friend and wielder of the Warhammer. He's kind, funny, and despite being the least athletic of the group he still ends up being strong in combat. Roommates with Aarrrgh (a troll) and wingman. He spent the summer helping their extraterrestrial friends return home.

Blinky is a troll. He's Aarrrgh's closet Ally and even best friend. He knows a lot and studies a lot. He keeps a library full of history books and he has a wide vocabulary. He's Jim's mentor and even considers Jim as close as a son. He's not good in combat unless he has a range weapon.

He's a troll. Cannot go out in daylight. He used to be a gumgum but reformed and sided with the trolls of Trollmarket. He's very close with blinky, living with him for centuries until moving in with Toby as his wingman. Speaks mostly in broken English. He is a brute but not violent unless he has to be. He's very protective of his friends when meeting new creatures

Draal is a troll. Draal's father was the trollhunter before Jim so he thought he'd be the next trollhunter instead of Jim. When that proved untrue he challenged Jim and lost, causing him to leave Trollmarket and live with Jim as his protector. Draal is tough, loyal, stubborn, and ruthless. He slowly became very protective over Jim and his friends.