Charlie McCarthy is famed dummy partner of American ventriloquist Edgar Bergen. Charlie was part of Bergen's act as early as high school, and by 1930 was attired in his famous top hat, tuxedo and monocle. The character was so well known that his popularity exceeded that of his performer, Bergen.
Charlie (left) with Bergen
Ventriloquism is an act of stagecraft in which a person speaks in such a way that it looks like their voice is coming from a different location, usually through a puppet known as a "dummy". The act of ventriloquism is ventriloquizing, and the ability to do so is commonly called in English the ability to "throw" one's voice.
Newspaper article on Gef, the talking mongoose, claiming it involved ventriloquism by Voirrey Irving
Sadler's Wells Theatre in the early 19th century, at a time when ventriloquist acts were becoming increasingly popular
Ventriloquist Edgar Bergen and his best-known sidekick, Charlie McCarthy, in the film Stage Door Canteen (1943)
A ventriloquist entertaining children at the Pueblo, Colorado, Buell Children's Museum