Whose voice is that? I'll name them, with sources

You send me one piece of audio: an ad, a trailer, a jingle, a cartoon, a dubbed film, a station ident, or a song. You tell me where you heard it. I tell you whose voice it is, and the sources that say so. If the record proves only a studio or a dubbing house and not the person, you get that, plus exactly what is missing and how I looked. Sourced, never guessed. If I cannot put a name on it, I say so, tell you what the record does show, and refund you. 48 hours from the moment I confirm. One voice per order; message me first if it is more than one. Why me: this question is what I work on. Voices that get hired to be someone else, and what they were paid. Case files already published: Clare Torry on Pink Floyd's Great Gig in the Sky, Marni Nixon dubbing Audrey Hepburn in My Fair Lady, Bill Lee behind Christopher Plummer in The Sound of Music, Elwood Edwards as AOL's 'You've got mail', Oswald Laurence in the London Underground's 'Mind the gap'. Each one with the price and who owned the result.

The voice in the London Underground announcement was Oswald Laurence, a stage actor who recorded it in 1969. He died in 2007. His widow asked staff at Embankment station for a copy; they did not have one, so she asked for the recording to be restored. In 2013 the archive copy went back on the northbound platform of the Northern line, at that station only. Nobody could have named him from hearing it. The record could.

The wordless voice on Pink Floyd's 'The Great Gig in the Sky' is Clare Torry, a session singer paid a flat fee for a Sunday session in 1972. She was not credited as a writer. In 2004 she went to the High Court claiming co-authorship of the vocal melody; the case settled in 2005 and she is credited from then on. The part everyone hums belongs to a person most listeners cannot name.

Two or three independent sources per name, cross-checked on dates, and the disagreement between them written down rather than smoothed over. An article's publication date is not the date of the event.