Sokar is a Goa'uld who replaces Apophis. He is named for the Seker of Egyptian mythology. Sokar is an ancient Goa'uld who once ruled the System Lords until he was defeated by an alliance that included Ra, Apophis, and Cronus. In those times, his host body was that of an Unas. Sokar has posed as the god of death on many different worlds, and Satan is one of his guises.