Con artist and Double-crosser

Con artist noun - A swindler who exploits the confidence of his victim.

Double-crosser and con artist are semantically related. In some cases you can use "Double-crosser" instead a noun phrase "Con artist".

Double-crosser noun - One who betrays a trust or an allegiance.

Con artist and double-crosser are semantically related. Sometimes you can use "Con artist" instead a noun phrase "Double-crosser".