This is a list of secondary characters from the science fiction television series Star Trek: Deep Space Nine. Characters are ordered alphabetically by family name, and only characters who played a significant major role in the series are listed. Star Trek: Deep Space Nine was a science fiction television show of the Star Trek franchise that aired between 1993 and 1999. Many of the characters appear in other programs and films comprising the wider Star Trek science fiction universe. For the main cast of the show, see List of Star Trek Deep Space Nine cast members.