"This body that you see is not mine."
"Another nut case." I think. Many of the uber-wealthy are a little odd but their money spends just fine.
"Our civilisation perished millions of years in your past when the dark ones came from the stars. Our minds have escaped through time into members of your species. Your influence can assist our return to this world. You will be richly compensated."
Years as a lobbyist has given me access to Washington's inner circles. There, my dark masters will reward me generously to learn that their ancient enemies have returned.