Kassar Kosciusko, a Tarro male from the legends continuity, initially worked as an assassin. He later transitioned into entrepreneurship, becoming the owner and manager of the Royal K Hotel and Casino situated on Kwenn Space Station. Simultaneously, he operated as a clandestine agent for the Rebel Alliance.
Born in 73 BBY, Kassar Kosciusko began his career as a deadly assassin. In 20 BBY, he encountered five Loag assassins in the eastern district of Luj City on the planet Novor 23. All were tasked with eliminating the same target. Kosciusko not only completed the mission but also eliminated the rival Loag assassins, sustaining a significant scar in the process. Kosciusko maintained a friendship with Meysen Kayson, whose life he had previously saved on Pernam Minor. Soon after the Battle of Yavin, Kosciusko, then known as "Mr. K," ran a casino on Kwenn Space Station. He covertly gathered resources and intelligence while posing as an ambitious businessman. By 0 ABY, he was secretly providing information to Alliance Intelligence. He also occasionally utilized his assassin skills, such as in the "mysterious disappearance" of Moff Chorkun.
Kosciusko maintained a Rebel cell on Kwenn Station, but their operations were frequently hampered by Derrida, an Imperial spy. Derrida became Kosciusko's personal adversary after disrupting at least five Rebel operations on Kwenn.
Kosciusko was a Tarro male characterized by dark green skin, dark blue hair, and striking yellow eyes. He possessed a mouth full of sharp teeth, which he used to intimidate others, and a prominent scar on his body. He favored elegant attire that accentuated his muscular build, often complemented by long, flowing cloaks.
Kosciusko was a proficient combatant, skilled with blasters, melee weapons, and hand-to-hand combat. He possessed exceptional strength, speed, and physical conditioning. He was also acutely aware of the inner workings of Kwenn Space Station. In terms of social skills, Kosciusko excelled at both intimidation and persuasion, making him an effective leader and business owner. Furthermore, Kosciusko was a skilled swoops pilot, especially with the Nebulon-Q.
Kosciusko's wardrobe consisted of expensive, custom-made clothes and cloaks. His arsenal included a heavy blaster pistol, a stun cloak, and an Ar'gor blade.
Craig Robert Carey and Michael Denbo created Kassar Kosciusko for Cracken's Rebel Operatives, a supplement for the Star Wars: The Roleplaying Game. West End Games published it in 1994. Mike Vilardi provided the illustrations.
- Cracken's Rebel Operatives (First mentioned)
- " The Greel Wood Haven " — Star Wars Adventure Journal 6
- Alliance Intelligence Reports
- Galaxy Guide 12: Aliens — Enemies and Allies
- Ultimate Alien Anthology