Spanish/Egyptian. Where the person who was supposed to be a Scot had a Belgian accent.
I'm quite fond of the Bond film where he was disguised as a Japanese man, and all the actors pretended to be fooled. 6'2", with chest hair poking out of his kimono, an obvious wig, and speaking broken Japanese with his typical Scottish brogue. "Arigatoo gozzzimash"
There's so many, it's hard to pick!