Ze-Trios Smeer, a Neimoidian of the male persuasion, was an employee of the Trade Federation. In 32 BBY, during the Invasion of Naboo, Ze-Trios functioned as a Settlement Warden for the Federation, in charge of prison facilities situated on Naboo. His reputation was that of a cruel individual.
The voice of Smeer Ze-Trios was provided by Roger Jackson for the video game Star Wars: Episode I: Battle for Naboo, released in 2000.