Cast of Star Trek: Deep Space Nine

Avery Brooks portrays Commander Benjamin Sisko, the commanding officer of the Deep Space Nine space station.

Nana Visitor plays Colonel Kira Nerys, a Bajoran liaison officer on Deep Space Nine who has a strong resistance background.

Colm Meaney is Chief Miles O'Brien, a Starfleet engineer and transporter chief assigned to Deep Space Nine.

Terry Farrell depicts Lieutenant Commander Jadzia Dax, a joined Trill and the station's science officer.

Alexander Siddig plays Doctor Julian Bashir, the chief medical officer on Deep Space Nine.

Cirroc Lofton is Jake Sisko, Benjamin Sisko's son and an aspiring writer.

Armin Shimerman portrays Quark, a Ferengi bar owner and entrepreneur on Deep Space Nine.

René Auberjonois plays Odo, the shapeshifting chief of security for Deep Space Nine.

Nicole de Boer portrays Lieutenant Ezri Dax, the station's counselor and a joined Trill succeeding Jadzia Dax.

Michael Dorn plays two roles: Lieutenant Commander Worf, a Klingon Starfleet officer, and Willie Hawkins, a character in the holosuite program set in 1950s Earth.

John Colicos is Kor, a Klingon warrior and a character who made appearances in both the original Star Trek series and Deep Space Nine.