Sundowner, also known as the Californian Wildfire, is one of the two secondary antagonists (alongside Jetstream Sam) of the video game Metal Gear Rising: Revengeance and the overarching antagonist of its Jetstream Sam DLC.
He is the leader of the PMC Desperado Enforcement LLC who seeks to start a war for no reason other than simply enjoying the death, destruction and carnage it causes.
He is voiced by Ken Nishida in Japanese and Crispin Freeman.