Pocoyo is the main character of the series. He is a young boy full of curiosity who loves to play games and discover new things. He is always shown wearing blue clothes and a hat. He is (always) four years old. His best friends are Pato, Elly and Loula. He has a vehicle called the Vamoosh which he can use to travel under the water, in the air or through space.
Pato is a yellow duck who wears nothing but a small green hat. Pato means duck in Spanish, Portuguese, Tagalog, and Papiamento. A favourite amongst the young children due to his enjoyable dancing. Although friendly, Pato is the most fussy and impatient character (indicated by his beak that bends in an angle when disappointed or shocked); on occasion he completely loses his temper, jumping up and down and quacking furiously. He is used as a jackhammer or missile or a hat and can become a helicopter.
Elly is a pink elephant who always wears a blue back-pack. She loves making biscuits and tea, and she also has a doll that she loves very much. Despite her size, she is graceful and gentle, capable of ballet dancing. She usually rides around on her pink scooter.
Loula is Pocoyo's orange-yellow pet puppy and companion. Originally, the character's name was Lucas, in tribute to Creator and Director Guillermo García Carsi's dog, but for the series was lacking female characters so it was changed to Loula.