Wiktionary
n. (double-crosser English)
Usage examples of "double-crossers".
And that is just the reason why I have chosen you, Fissif, the smoothest of double-crossers, to undertake this business.
Presently he came to an article on the British Government's attitude towards Communist China and began to sneer at the British as a dirty lot of double-crossers who would have gone down the drain long ago had it not been for the innocent belief of the Americans that there was something like old brandy about them in that, however much they might cost, they paid for keeping.
Yet the antitrust laws, now, in this new phase, are apparently aimed at transforming business into an underworld, with informers, stool pigeons, double-crossers, special "deals," and all the rest of the atmosphere of The Untouchables.