Chuck

Chuck is a very goofy, hyperactive bird. He is constantly fueled with energy and seems as if he always needs to be doing something. He can never stop moving, both in his mind and in the body. He tends to be clueless and ignorant at times, and this often will get in the way in dire situations. Chuck is always up to his latest mischief and he can be rude to the other birds. This causes him to get into trouble with the other birds especially Matilda. Chuck is skilled in fighting and martial arts. Whenever he practices martial arts, he dons his red headband, though his fighting practices can often lead to catastrophe around him. Chuck also manages to get very distracted and at times cannot focus on the task handed to him due to things that catch his mind, like a wandering butterfly or even a mirror. This vulnerable part of him is what allows the Bad Piggies to get close to the eggs when he is on watch duty. Despite all this, Chuck is as invested in protecting the eggs as the other birds are. He is extremely loyal and values the other members of his flock, though he can be easily intimidated when the other birds outdo him in something, which has happened with Jay, Jake, and Jim (Full Metal Chuck), Bomb (The Bird that Cried Pig), and Terence (Run Chuck Run).

The earliest known appearance of Chuck had him as a yellow-colored, triangular-shaped bird with two feathers on his head and two large eyes with black pupils. He was soon after redesigned to have smaller eyes with red eyebrows floating on them, four black, spiky feathers on his head, and three of said feathers on his back as his tail. He also has white feathers on his belly. In Angry Birds Toons, this design was slightly modified to have him with a somewhat different beak and more jagged head and tail feathers. In The Angry Birds Movie, Chuck was given an anthropomorphic design. He is now shaped somewhat like a banana, and has three longer feathers on his crest instead of the shorter four he used to have. His tail feathers are much longer as well. In addition, Chuck has green pupils instead of the traditional black. Future releases would occasionally switch between Chuck's new body and his old one. In Angry Birds Dream Blast, Chuck was redesigned once again to resemble a hatchling. While he keeps his triangular body from earlier games, he has wider eyes with the green pupils from the films. The feathers on his head and tail are as short as in the games, and end with a circular tip instead of a point one, similar to his earliest design.

Chuck is notable for his incredible speed. Having been called "the fastest bird in the world", he can use his speed to perform incredible tricks, such as stopping time, boosting in the air, and producing shock waves that can pop nearby balloons. In addition, he is so quick that, to the naked eye, it looks like he is teleporting whenever he is running. He is also capable of dodging and reacting to lightning. While his top speed is unknown, he has managed to go from the Cobalt Plateaus to Pig City and retrieve the eggs when they were about to be put on a hot cauldron and return to the plateaus with them, all of it within seconds. Chuck also has sharp reflexes that let him react quickly to almost anything. To a lesser extent, Chuck is also known for being an experienced wizard and an expert in alchemy. He can summon clouds that can charge lightnings, acid rains, and healing rains, which makes him able to attack a wide range of enemies at the same time or, in the case of the healing rains, cure his allies and remove their negative effects. In addition, he can summon a group of lightning spheres that can protect his target ally, and create a copy of one of his allies that will attack an enemy before disappearing. Chuck is also an expert at driving karts. With his sharp reflexes, he can drive incredibly fast karts with ease, having driven through tight, sharp curves without losing his speed at all. He is also an expert at building and fixing them, having rebuilt a kart of his from scratch in a few seconds.