Star Wars - Death StarMichael Reaves, Steve PerryStar Wars Legends: Novels

Characters in Star Wars - Death Star

4 characters, main characters first.

Main characters

Wilhuff Tarkin

Antagonists

Emperor Palpatine
Also in Star Wars Episode III - Revenge of the Sith, Star Wars - Shadows of the Empire, Star Wars - Tatooine Ghost, Star Wars - The Approaching Storm, Star Wars - The Last Jedi
Darth Vader
Also in Star Wars - Dark Lord - The Rise of Darth Vader, Star Wars - Shadows of the Empire, Star Wars - Tatooine Ghost, Star Wars - The Last Jedi, The Truce at Bakura

Minor characters

Luke Skywalker
Also in Heir to the Empire, Star Wars - Allegiance, Star Wars - Choices of One, Star Wars - Crosscurrent, Star Wars - Crucible, Star Wars - I, Jedi, Star Wars - Shadows of the Empire, Star Wars - Survivor's Quest, Star Wars - The Crystal Star, The Truce at Bakura