| Chronological and political information
- "Our scout ships have reached Dantooine. They found the remains of a Rebel base, but they estimate that it has been deserted for some time. They are now conducting an extensive search of the surrounding systems."
- ―Cass reports to Grand Moff Wilhuff Tarkin
Cass was a male Human who served the Galactic Empire as an Imperial officer during the Galactic Civil War against the Alliance to Restore the Republic. Shortly before the Battle of Yavin, Cass attended a meeting on board the Death Star in which he witnessed Admiral Conan Antonio Motti and General Cassio Tagge argue about the station's power, before the Sith Lord Darth Vader Force choked Motti. He later reported to Grand Moff Wilhuff Tarkin that the planet Dantooine was not the location of the main Rebel base. Not too long afterward, the Battle of Yavin commenced, with the Alliance destroying the Death Star battlestation.
- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars in 100 Scenes (First identified as Cass)