What informercials have a sly guy or almost sly guy as a spokesman?  There is a commercial for the Shark Steam Mop and the spokesman is a guy named Mark Rosen.  For someone who is not totally sly, he wears his fringe tastefully short.  He would be a natural for the totally sly look.  Can you think of others who are sly or close to it?  Here is a pic of Mark.