In 2371, Commander Benjamin Sisko used a viewscreen manipulation to impersonate Viterian and disguised the USS Defiant as his freighter, in order to fly into Cardassian space to rescue Major Kira Nerys from the Obsidian Order. (DS9: "Second Skin")
As evidenced in the script for "Duet", the Kobheerian captain was initially meant to be female but was changed to be a male in the final cut.  The name "Viterian" comes from the script for "Second Skin" which also provides the pronunciation "vih-TAIR-ee-uhn". 
The footage of Sisko masquerading as Viterian in "Second Skin" is stock footage from "Duet" with voiceover provided by Avery Brooks. As a result, Norman Large was not credited for his appearance in this episode.