Chuck is an American twin-rotored helicopter. He comes from America and of course, doesn't understand much British English well. He sometimes gets cocky, acts like a big baby and likes to show off, but this led him to trouble when he disrupted an air show and finished up in a pond. He also has a bad habit of calling Lionel Captain.
Chuck is based on the Boeing CH-47 Chinook. These helicopters are commonly used for military purposes.
He is voiced by Kerry Shale in the English dub, who has also voiced various characters in Thomas & Friends.