Sauvix is an antagonist in the Doctor Who episode Warriors of the Deep. He was the leader of a group of Sea Devils called Elite Group One who were awoken by a group of Silurians led by Icthar in 2084 in order to invade Sea Base 4 in order to start a nuclear war which would kill the humans and following this, The Sea Devils and Silurians could rule Earth again. This plan failed when Sauvix along with his fellow Sea Devils and Silurians were killed when The Fifth Doctor released hexachromite gas in Sea Base 4.