Zuzo will appear in the upcoming special, Elena and the Secret of Avalor. When Shuriki seized control of the Kingdom of Avalor following the murder of the King and Queen and imprisionment of the surviving members of the Royal Family, Alakazar, the Royal Sorceror, summoned Zuzo who sent him on a journey to free Elena from the Amulet of Avalor so she could free Avalor.
Zuzo appears in the show that follows the events of the special. Due to residue magic left over from the Amulet of Avalor after she was freed, Elena is able to see and communicate with Zuzo without having to summon him. In turn, Zuzo is able to offer Elena advice in times of need though he cannot directly help her. Due to his service under Alakazar, Zuzo knows much about the magic of Avalor, and so is able to explain Elena's discoveries of her enhanced magic to her.
Zuzo is based on a chanul, and the belief of a Mayan tribe in southern Mexico that everyone has a spirit double in the animal world, such as the Tzotzil.