DJ Lance Rock (played by Lance Robertson) is a human musician. He is the host of the show. He is the friend of Muno, Foofa, Plex, Brobee, and Toodee (the Gabba gang) who he brings to life in a magical silver boombox where they start out toys at the beginning and end of every episode. He wears orange. His hobbies are dancing, playing his keyboard, singing songs, and flying.
Muno (voiced by Adam Deibert) is a red cyclops who is the tallest. He's so clumsy. He has a close friend with Foofa. Muno is also the band's guitarist. He lives in a rock-filled summer-themed desert-like place called "Muno Land". His hobbies are playing his guitar, seeing bugs, skateboarding, and building blocks. His realm resembles the desert and he has a pet horse and a family. During Super Bowl XLIV, he appeared in a 2010 commercial for the Kia Sorento.
Foofa (voiced by Emma Jacobs) is a pink flower-bubble hybrid who is very cute. She seemingly likes typical girly stuff: flowers, rainbows, dolphins, and unicorns. She lives in a spring-themed place called "Foofa Land". She is the band's tambourinist. Her realm is a spring meadow with flower covered green hills and a trio of colorful flowers (purple, yellow, and orange). Her hobbies are watering her flowers, whistling like a bird, playing her tambourine, and riding her bike.
Plex (voiced by Christian Jacobs) is a yellow magical robot. He is described as being smart and the leader of Gabba Land. Plex often teaches lessons to his friends and is a father figure to the gang. He can also use his special ray to bring things into existence and can also transport living things. He is the band's keyboardist who plays the keytar (part keyboard, part guitar). Unlike the rest of the Gabba gang, He has no realm in particular, though he seems to have a "docking station" between Foofa and Brobee's realms which is shaped like a battery. His hobbies are driving his car, beaming DJ Lance Rock down, playing his keytar, and stretching his arms way in the air. He is presumably the eldest of the gang.
Brobee (voiced by Amos Watene) is a little and furry green broccoli bee-like monster. He lives in an autumn-themed place called "Brobee Land", He is the band's drummer. He is one of the only main characters whose facial expression changes depending on the situation; his normal face turning into a frown, and vice versa. His hobbies are trying different foods (which is especially mostly devoted to the song, "Party In My Tummy"), playing his drums, riding his scooter, and coloring. His realm is a large autumn forest filled with lots of trees, a stump, and a log. He is around 4 years old as he celebrated his birthday in one episode of the show making him the only one of the Gabba gang to have an confirmed age.
Toodee (voiced by Erin Pearce) is a blue cat-dragon hybrid who loves to have fun. She has a close friend with Plex and is also the band's bassist. She lives in an arctic winter-themed realm filled with icicles called "Toodee Land". Her hobbies are ice-skating, playing her bass, surfboarding in the ocean, and tap-dancing.
Gooble (voiced by Joel Fox and later Christian Jacobs) is a very sad white ghost. He is usually always seen with a depressed looking expression on his face with black eyes and a frowning red mouth, while he sometimes tends to pop up occasionally in Gabbaland, he lives in a spooky place on his own known as "Gooble Land".
Super Martian Robot Girl (voiced by Ariela Barer in Season 1) is a green and pink humanoid superhero with the power of common sense who appears in her title segment from Season 1. She eventually returned as a guest during the Story Time Segment in 1 episode of Season 3 and she was voiced by Caroline Jacobs.
Mark Mothersbaugh is a member of Devo. He appears as a artist drawing pictures in his segment "Mark's Magic Pictures" that become alive.
Biz Markie is a human D.J. who demonstrates beatboxing in "Biz's Beat of the Day".
