'Yo Gabba Gabba!' is a children's show on Nick Jr. It follows a musician named DJ Lance Rock, and 5 monsters: Muno, Foofa, Brobee, Toodee, and Plex in Gabbaland. The fun never ends. They like to sing, dance, teach, laugh and play.
Main characters
DJ Lance Rock (Lance Robertson), a D.J. who makes toys come to life by saying "Yo Gabba Gabba!". He is also the host. DJ Lance wears an orange hat and suit with a white belt that says "ROCK". Muno (Adam Deibert - seasons 1-3 & Rob Paulsen - season 4), a tall, red cyclops who is clumsy. His closest relationships are with DJ Lance, Foofa, and Brobee. He is the Gabba guitarist. Foofa (Emma Jacobs), a pink, flower bubble who loves unicorns. Her closest relationships are with DJ Lance, Muno, and Toodee. Brobee (Amos Watene), a tiny, green monster who is the youngest of the Gabbas. His closest relationships are with DJ Lance, Foofa, and Plex. Toodee (Erin Pearce), a blue cat-dragon who loves fun. Her closest relationships are with DJ Lance, Foofa, and Brobee and she is the Gabba bassist. Plex (Christian Jacobs), a yellow and silver magic robot who happily serves the Gabbas. He also has fun to pay off. He is the oldest and he is the only guy with no land. His closest relationships are with DJ Lance, Toodee, and Brobee. He is the Gabba keyboardist. He talks with a Chrome accent.
Recurring characters
Biz Markie, a rapper and beatboxer who frequently appears for his own segment, "Biz's Beat of the Day". Mark Mothersbaugh, an artist in his segment "Mark's Magic Pictures" who draws in every episode and all his drawings come to life.
Celebrity appearances
Jack Black, an actor and new friend of the Gabbas who is scared at first but then has a strong friendship with the Gabbas later. Jack McBrayer, a comedian who appears in the occasional segment "Knock Knock Joke of the day". Erykah Badu, a very frequent singer and dancer in the show. Fred Armisen, a rarely shown treasure hunter and crafter. Paul Scheer, a joker who made a brief cameo and Gabba Land and in New Friends was (along with Jack McBrayer) a member in Knock Knock Joke of the day. Carmen Osbahr, a puppeteer who plays Chibo. Super Mr. Superhero (played by Mos Def), a superhero who helps protect a monster, showing that superheros can only defeat if they know they are evil. Drew Massey, plays Brobee Cake in the episode "Birthday". Rob Paulsen, played as Muno in season 4 and was a guest on "Dancey Dance Time".