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Memory Beta, non-canon Star Trek Wiki

The fourth season of Deep Space Nine was produced and aired in 1995 and 1996.


Michael Dorn of Star Trek: The Next Generation joins the main cast as Worf, marking the first time a main character from one series has joined the main cast of another.

Some of the most notable episodes are "The Way of the Warrior", where Worf joins the crew when the Klingons end their alliance with the Federation overdose when they invade Cardassia, "The Visitor", where Sisko is displaced in time and Jake spends years trying to him, "Rejoined", where Jadzia breaks a Trill taboo, "Little Green Men", which sees Quark, Rom and Nog travel back in time to 20th century Earth, "Our Man Bashir", where Bashir's new secret agent holoprogram becomes deadly real, the two-parter "Homefront" and "Paradist Lost" in which Sisko is recalled to Earth to help fight against the Changdling infiltration threat, "Hard Time", in which O'Brien experiences decades of a virtual reality prison sentence, and "Broken Link", where Odo has to return home to be judged by his people.

Overarching storylines include encounters with the Dominion, conflict between the Federation and the Klingon Empire, Sisko's role as the Emissary and Worf's banishment from Klingon society.

Returning characters include Dukat, Garak, Nog, Rom, Eddington, Kasidy Yates, Leeta, Keiko, Molly, Zek, Kor, Gowron, Brunt, Lwaxana and Shakaar. Damar, Weyoun, Martok, Joseph Sisko, Ziyal and Muniz are introduced in this season. Kurn, Worf's brother from TNG appears in "Sons of Mogh" and Toral, Duras' son from TNG appears in "The Sword of Kahless".

Licensed publications

Tie-in publications by Pocket Books and Malibu Comics, both novels and comic books, were produced in conjunction with the production of this season.


Novels set during the fourth season

Comics set during the fourth season



See Category:Memory Beta images (DS9 season 4 images).


Star Trek television seasons
The Original Series TOS season 1TOS season 2TOS season 3
The Animated Series TAS season 1TAS season 2
The Next Generation TNG season 1TNG season 2TNG season 3TNG season 4TNG season 5TNG season 6TNG season 7
Deep Space Nine DS9 season 1DS9 season 2DS9 season 3DS9 season 4DS9 season 5DS9 season 6DS9 season 7
Voyager VOY season 1VOY season 2VOY season 3VOY season 4VOY season 5VOY season 6VOY season 7
Enterprise ENT season 1ENT season 2ENT season 3ENT season 4
Discovery DSC season 1DSC season 2DSC season 3DSC season 4
Picard PIC season 1PIC season 2
Lower Decks LD season 1LD season 2
Prodigy PRD season 1
Strange New Worlds SNW season 1