Kren Blista-Vanee was a human male who held the position of advisor on the Imperial Ruling Council for Emperor Sheev Palpatine during the Galactic Empire's reign. In the year 14 BBY, Blista-Vanee, a relatively new member of the Ruling Council, demonstrated his value by discovering new hyperspace routes leading into the star systems within the Deep Core region of the galaxy. He, along with fellow advisors such as Mas Amedda, Ars Dangor, and Janus Greejatus, participated in a meeting between council members and representatives from the Empire's various intelligence agencies. The meeting addressed the theft of the corvette Carrion Spike from Moff Wilhuff Tarkin by a rebel cell, and its subsequent employment in attacks against Imperial installations. During this discussion, Palpatine requested Blista-Vanee to provide specific information about several Interdictor class vessels from the Deep Core Security Zone which Tarkin intended to utilize in the capture of the stolen corvette. Later, Blista-Vanee was among the Ruling Council members who accompanied Palpatine to the second Death Star, where he met his end alongside the other five dignitaries when the battle station was destroyed. Blista-Vanee enjoyed attending opera performances and was known for wearing colorful clothes, including extravagant hats.
The initial appearance of Kren Blista-Vanee was as an unnamed Imperial advisor in the 1983 motion picture Star Wars: Episode VI Return of the Jedi. This character, played by an uncredited extra, remained nameless until the name "Kren Blista-Vanee" was introduced in the Star Wars Legends roleplaying game supplement, Galaxy Guide 5: Return of the Jedi, for Star Wars: The Roleplaying Game. The name was officially canonized through its inclusion in James Luceno's 2014 novel, Tarkin.
Nilo Rodis-Jamero was the designer of Blista-Vanee's costume. Rodis-Jamero considered the visual appearance of the Imperial advisors to be among the most captivating designs featured in Return of the Jedi, believing that their attire needed to convey an understanding of the environment in which the Emperor existed. Rodis-Jamero drew inspiration for the look from Catholic bishops, incorporating red hues and elaborate headwear.