but due to a shortage of female characters, the character was renamed Loula. The Children are a group of children who, like The Narrator, speak over the show, answering questions asked by The Narrator in order to assist Pocoyo in solving a problem or to let Pocoyo in on what's going on. Nina (voiced by Noel Rodriguez in 2016/2017-2020 productions, and Alba Ramos in post-mid-late 2020 productions onwards) is another human (Homo sapiens) character who is introduced in the fourth series episode of the same name. She is a young girl similar to Pocoyo (likely younger than him) who has red hair, wears a lime green hoodie with two antennas, lime green shorts, and lime green shoes. Like Pato, She greatly loves plants and nature. She naturally speaks mostly a form of gibberish with a Japanese accent, but can also speak fluent English, though not as much as Pocoyo. Her name resembles "niña", Spanish for "girl". Thanks to her robotic pet called Roberto (pronounced Roh-bear-toe), it has the ability to shrink where anyone can be shrunk as well. Recurring Aliens are a family of small tripodal one-eyed alien creatures that Pocoyo and his friends usually find whenever they go to space. They communicate with one another using staccato 'clicking' noises. Sleepy Bird is a teal-coloured songbird (Passeri). She does little but sleep, and usually flies with her eyes closed. She is named "Pajaroto" in the Spanish version (reportedly named after a Zinkia employee nicknamed "Maroto", and bearing a strong resemblance to him). The character is also known as "Pajaro Dormilon" in the Latin American Spanish version. For the episodes where Nina is present (excluding her debut appearance and the episodes where she's absent), she was digitally removed from the title sequence to make room for Nina. Baby Bird is the small, always active (he has not inherited his mother's fondness of sleeping) and loud baby of Sleepy Bird, who gets into tricky situations from which he is rescued by Pocoyo. He is also a songbird (Passeri). He is best friends with Caterpillar. Named "Pajarito" in the Spanish version ('little bird'). Ball Orchestra is a group of three ball-like creatures who play the trumpet, drums, and cymbals. In the series 4 episode "Space Postal Service", it's revealed that they live in a planet filled with instruments. Caterpillar (named "Valentina" or "Oruga" in Spanish) is a yellow caterpillar (Lepidoptera) with a blue