Sardis Ramsin, given the designation TD-7556, was a male human serving as a sandtrooper within the Stormtrooper Corps of the Galactic Empire's army. He was once stationed on Weigh Station Karambola, where a group of Rodians headed by Bludlow assaulted him after he pretended to be a bounty hunter.
About 0 BBY, Ramsin was based at Mos Eisley on Tatooine, functioning as a member of Foot Patrol 7 under Commander TD-110. Following the escape of a freighter transporting droids sought by the Empire, Ramsin, who disliked his job and fellow troopers and yearned to ride dewbacks, deserted. He then sent a sarcastic incident report as his last message to his previous commanders.
During 3 ABY, Ramsin worked as an intermediary between Cribiriz Idollax, a warlord, and a Jawa scavenger. He facilitated the delivery of the head of the bounty hunter droid 4-LOM from the Jawa to Idollax.