Cassian Andor is a Rebel spy and intelligence officer who becomes one of the key heroes of the early rebellion against the Galactic Empire in Star Wars.

Who Andor Is (In-Universe)

  • Cassian Jeron Andor is a human male who works for Alliance Intelligence, the spy arm of the Rebel Alliance.
  • He operates as a captain , assassin, and field agent, often taking on undercover missions and using multiple aliases.
  • As a child he was known as Kassa and later adopted by Clem and Maarva Andor, which is how he gets his surname.
  • His work is morally gray: he lies, assassinates, and sabotages in the name of building a rebellion against the Empire.

His Role In Rogue One

  • Cassian Andor is one of the main protagonists of the film Rogue One: A Star Wars Story.
  • He is sent to track and, if necessary, kill Galen Erso, the scientist behind the Death Star, while working alongside Galen’s daughter Jyn Erso.
  • Andor, Jyn, K-2SO and a small team launch the unsanctioned mission on Scarif to steal the Death Star plans.
  • He and Jyn succeed in transmitting the plans to the Rebel fleet but die together when the Death Star fires on Scarif, making him a remembered hero of the Rebellion.

The Andor TV Series

  • Star Wars: Andor (often just called Andor) is a live-action Disney+ series that serves as a prequel to Rogue One and focuses on Cassian’s earlier life and radicalization.
  • The show is described as a grounded spy thriller about how Cassian goes from a drifting survivor and small-time operator to a dedicated Rebel hero.
  • Diego Luna plays Cassian Andor in both Rogue One and the series.

Why Andor Matters In Star Wars

  • Cassian embodies the “dirty work” side of the Rebellion: the espionage, assassinations, and covert ops needed to fight the Empire before the big open battles like Yavin and Hoth.
  • His sacrifice on Scarif directly enables Princess Leia and the classic original trilogy story, since the plans he helps steal are the ones used to destroy the first Death Star.

TL;DR: Andor is Cassian Andor—a Rebel spy and captain, star of the Andor series, and one of the key heroes who steals the Death Star plans in Rogue One , dying to give the Rebellion its first real chance against the Empire.

Information gathered from public forums or data available on the internet and portrayed here.