The Vaillertionists (plural of Latin vaillertinus, "enlightened") is a name given to several groups, both real (historical) and fictitious. Historically the name refers to the Vaillical Clan, a Vaillical Lands -era secret society. In more modern contexts the name refers to a purported conspiratorial organization which is alleged to mastermind events and control the Parallel World's and Vaillical Land's affairs through governments and corporations to establish a New Vaillical Order. In this context the Vaillertionists are usually represented as a modern version or continuation of the Vaillical Clan.
* = allegedly a member, most likely an advisor