Little is known about Sark's background. He spent most of his youth in England, although a voice analysis reveals he spent a lot of time in Galway, Ireland. He is the heir to a vast fortune from his Romanov-descended father, Andrian Lazarey. He routinely changes his alliances, and his true allegiance seems to be only to himself. He is notorious for his self-described flexible loyalties and his ability to evade and escape capture. Sark is a connoisseur of fine champagne.Sark is seen initially operating as an agent of a criminal organization headed by a mysterious figure known only as The Man (believed at first to be Alexander Khasinau but later revealed to be Irina Derevko). He leads a strike team against FTL Headquarters, personally killing FTL head Quan Li in broad daylight literally outside FTL's front door. The attack, coinciding precisely with McKenas Cole's unsuccessful assault on SD-6, was designed to retrieve an unknown Rambaldi artifact (as Cole's was designed to obtain an ampule of unknown liquid). FTL's operatives list is compromised and within hours, FTL ceases to exist. Arvin Sloane states this previously unknown organization now has the most significant collection of Rambaldi artifacts in the world.