Thread:BeholderofStuff/@comment-33286111-20180718045322

On Tvtropes, the two are considered Affably Evil rather then Faux Affably Evil.

This is supported by the two worrying about Kevin when he nearly hits their van. Its only after their rivalry becomes personal do they want to kill Kevin.

Marv is also pretty childlike and is friendly to people he meets on the street.

Basically while they are evil and willing to do genuine evil, they seem to be Affably Evil rather then Faux Affably Evil. 