A category for those who were killed in the Kamen Rider Series.
Those who do not count are deaths that were reversed (i.e. Gentaro Kisaragi's death in Subaruboshi Kingdom and revival in Super Space Sword), characters whose deaths are unconfirmed, or if canon Riders die in alternative reality movies.
Also those who don't count for this category are the Kaijins unless they were around for a long time or were part of a series were said kaijin deaths are rare.
Those who count for this category are deaths that are permanent and they stay dead.