Ensign Cariso Smadis was a Human male trooper and marine in the Rebel Alliance Fleet. In 0 BBY, he was stationed aboard the Alliance CR90 corvette Tantive IV, the consular ship of Princess Leia Organa of Alderaan, as it carried recently stolen technical data to the Galactic Empire's Death Star battlestation. Smadis fought to defend the Tantive IV from a stormtrooper boarding party attached to the Dark Lord Darth Vader's pursuing Imperial Star Destroyer Devastator above the planet Tatooine.