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Voice acting is the art of performing voice-overs to represent a character or provide information to an audience. Performers are called voice actors/actresses, voice artists, voice talent, voice-over artists, or voice-over talent. Voice acting is recognised as a specialized dramatic profession in the United Kingdom, primarily due to the BBC's long tradition of radio drama production.

Examples of voice work include animated, off-stage, off-screen or non-visible characters in various works such as feature films, dubbed foreign-language films, animated films, anime, television shows, video games, cartoons, documentaries, commercials, audiobooks, radio dramas and comedies, amusement rides, theater productions, puppet shows and audio games. Voice actors are also heard through pre-recorded and automated announcements that are a part of everyday modern life in areas such as shops, elevators, waiting rooms and public transport. The role of a voice actor may involve singing, most often when playing a fictional character, although a separate performer is sometimes enlisted as the character's singing voice.