Star Trek: Deep Space Nine's stationary setting and arc-based storylines lead to a very large number of recurring cast members. As such, its character sheet has been split into several pages.
As usual, beware of unmarked spoilers.
- Starfleet Crew (Ben Sisko, Bashir, O'Brien, Worf, Dax and its hosts, U.S.S. Defiant, Deep Space Nine)
- Federation and Bajor (Kira, Odo, Jake Sisko, Keiko, Winn, Opaka, Bareil, Eddington, Kasidy, Shakaar, Joseph Sisko, Ross, Sloan, Jaro Essa, Furel, Li Nalas, General Krim)
- Quark's Bar, Family, and Other Ferengi (Quark, Rom, Nog, Leeta, Morn, Zek, Maihar'du, Ishka, Brunt, Vic Fontaine, Leck)
- Cardassian Union (Garak, Dukat, Damar, Ziyal, Tain, Mila)
- Klingon Empire (Martok, Kor, Koloth, Kang, Gowron, Grilka)
- The Dominion (The Female Changeling, Weyoun(s), Keevan, Thot Gor, Legate Broca)
- Mirror Universe