It isn't Christopher Lee's voice in "Sherlock Holmes And The Deadly Necklace".
Niki Van Der Syl I believe dubbed Ursula Andress in most of her 60s films beyond "Dr. No". Certainly in "She". And I am pretty sure she also did Raquel's few grunts in "One Million Years BC".
In THE EARTHLING (1981), the voices of Australian actors Olivia Hamnett and Jack Thompson were dubbed to match the American accent of their onscreen son, actor Ricky Schroder.
Doug Bradley (Pinhead himself) in Nightbreed, though he got to re-record his voice and now features in the superior director's cut that came out last year.
OK, this has probably been done before (most thing have), but...
Flash Gordon - Sam Jones (Flash)
Jason & The Argonauts - Todd Armstrong (Jason)
Barbarella - Anita Pallenberg (The Great tyrant) re-voiced by Joan Greenwood ("my pretty pretty")
Greystoke - Andie MacDowell (Jane Porter). The funny thing is, her English accent wasn't very good, but she was re-voiced by another American actress, Glenn Close.
The Looking Glass War - Christopher Jones - The interesting thing about this is that David Lean (very casually) cast him in Ryan's Daughter thinking he could do a great accent after seeing this film (I don't know if he was re-voiced for RD)
She - Ursula Andress...& I believe Andre Morell in a smaller part, that's not his voice.
Goldfinger - Gert Frobe, I'm pretty sure he was.
There must be tons more.
Gert Frobe in "Goldfinger" was dubbed by somebody named Michael Bates, Adolfo Celi in "Thunderball" was dubbed by Robert Rietty, and Gabrielle Ferzetti in "On Her Majesty's Secret Service" was dubbed by David De Pyster.
ive just looked him up. David de Keyser. wow. zardoz, brannigan, 2 bonds, itvs Thriller, professionals, new avengers, Rome, dr who, paper tiger, Voyage of the damned, new tricks, holby city, revenge of pink panther, yentl, vampire circus,, Fu manchu films, hammers 7 golden vampires, several films with Boorman, inc Excalibur, etc etc and dozens more film and t.v appearances and voice onlys.
And there was the case where Rich Little had to do David Niven's voice in "Curse Of The Pink Panther" (Niven had Parkinson's Disease, which made him difficult to articulate his lines).
Another was with the restoration of "The Good, The Bad And The Ugly". Clint Eastwood and Eli Wallach's voices were still fine when they voiced the restored footage, but the one who tried to do Lee Van Cleef's voice wasn't very good.
Robert Rietti's voice turns up everywhere in the 1960s, '70s, '80s, in every epic where a 'foreign' voice was needed:
God, Rietti's voice was nearly everywhere in my childhood. Didn't know the name until a few years back, but I sure knew that voice. Oddly enough, I now think his voice is a DEAD RINGER for Anton Walbrook's. Incredibly similar tones and inflection.
Another voice from childhood was indeed David De Keyser's. Again everywhere (he took it in turns with Rietty in everywhereland). I have to admit that I formed an irrational dislike of his voice. The Anadin adverts that he VO'd were particularly irritating to my child self. God knows why. I called him the Anadin Man -"Headache? Tense, nervous headache?" He's probably a lovely man. I like his voice now. Rich and sonorous. Go figure.
In 1949's THE FORBIDDEN STREET, which was shot in England, Dana Andrews played two roles, "Henry Lambert" and "Gilbert Lauderdale." Reportedly, his performance as "Henry Lambert" was dubbed by an unidentified British actor.