• The episode title, “Cracked Mirror”, follows the practice of referencing mirrors in titles of episodes where the mirror universe is visited, going back to the very first, “Mirror, Mirror”.

    • Prior to “Cracked Mirror”, there were eight mirror universe episodes, alluding to mirrors in the titles:

      • “Mirror Mirror”
      • Through the Looking Glass”
      • “Shattered Mirror”
      • “Reflections”
      • “In a Mirror Darkly, Part I”
      • “In a Mirror Darkly, Part 2”
      • “Mirrors” - this episode does not visit the mirror universe, but does largely take place on a mirror universe ship that transported refugees to the prime universe

    • There are nine mirror universe episodes that don’t mention mirrors in the title, as well as the “Section 31” film. This is not including “The Tholian Web” or “Into the Forrest I Go”, which do include the mirror universe, but one only as a retcon, and the other only in a cliffhanger for the following story arc.

• ”The protowarp is merely bending spacetime around us.” Zero’s vague explanation for how the protodrive works does not differentiate it from how the more common warp drive works: the ship generates a subspace displacement field which compresses spacetime in front of the ship, and elongates it behind. So is the protowarp merely a more powerful version of the warp drive?

• ”She’s a whole lot different than the one I remember.” We’re told the character of Chakotay served aboard the USS Voyager on VOY that was stuck in the delta quadrant in VOY, but I cannot find any indication of the character.

• The Emergency Janeway Hologram tells Rok-Thak she’s a dog person. Unlike Captain Archer, the real Janeway whom the EJH is patterned upon left her dog, Mollie, in the care of her fiancée when she took command of Voyager, as per “Caretaker”.

• Admiral Jellico has taken command of the USS Voyager A. Jellico was introduced in “Chain of Command, Part I” as the captain assigned to temporarily take command of the USS Enterprise D.

    • The Protogies quickly discover that they reality where Jellico takes over after the deaths of Janeway, Tysses, and Noum is an alternate to their own, so fortunately Jellico can’t make anything worse for them in a way that it matters.

• It’s Okona! From Star Trek! Or at least an alternate reality iteration of Okona. He’s outrageous! Okona was introduced in the episode “The Outrageous Okona”, and the Protogies previously met in him in season one’s “Crossroads”. Okona is voiced by Billy Campbell, who also portrayed him on TNG.

• When Rok-Thak and Zero exit the turbolift, they find the Voyager A crewed by Enderprizians, who were introduced in “All the World’s a Stage”. The ship

    • The Enderprizian whom Rok-Thak and Zero speak with activates his comm to alert Captain Tuvix.

• ”I’ve been through something like this before.” Chakotay may be referencing the VOY episode, “Shattered”, where Voyager was caught in a temporal anomaly, and he was able to move through different time periods on the ship until finding a way to resolve the issue.

• Maj’el proposes using an inverse tachyon pulse to seal the interphasic rift Voyager A is caught in. In “All Good Things…” it was discovered that the USS Enterprise D using inverse tachyon pulses at the same point across three different times is what was creating the anti-time eruption.

• It’s the Mirror Universe! From Star Trek!

    • MU Janeway is wearing a Starfleet uniform, though “Crossover” established that the Terran Empire fell to the Klingon Cardassin Alliance in the 23rd century. This could indicate that there is still a pocket of the Terran Empire active, which was the case in the Shattered Mirror comics.

    • Janeway’s uniform does appear to be based on one from the Shattered Mirror comics. Like the mirror universe Marshall Janeway from Star Trek Online, this iteration has a Borg implant similar to Seven of Nine’s over her left eye.

    • MU Chakotay has a goatee, a look popularized for mirror universe executive officers by Spock in “Mirror, Mirror”. MU Chakotay also sports the same tattoo as his prime universe counterpart. As per “Tattoo”, Chakotay got the tattoo to honour his father.

• Apparently humpback whales are able to serve in the Terran Empire as well, though that does raise the question of how humpback whales were able to survive being hunted to extinction in the mirror universe, considering they killed out in the prime universe. Were there circumstances similar to those of “Star Trek: The Voyage Home”? Or perhaps Terrans simply got more joy out of grinding up puppies, rendering whaling obsolete.

This extremely stepped on jpg is not my OC.

• The episode title refers to the hip hop group, A Tribe Called Quest, which Data mentioned as being his favourite recording artists in the TNG episode, “Family”.

    • Tribbles first appeared in “The Trouble with Tribbles”.

• Rok-Tahk refers to the tribble by it’s scientific name, tribleustus ventricosus, which was first mentioned in the short, “The Trouble with Edward”.

    • Keiko O’Brien’s classroom in DS9 had a diagram of tribble labeled polygeminus grex, which was taken from the “Star Fleet Medical Reference Manual”, published in 1977.

• ”A tribble outbreak once brought the Klingon Empire to its knees.” Worf mentioned in “Trials and Tribble-ations” that tribbles were once considered mortal enemies of the Empire.

• ”But tribbles don’t have teeth.” We saw a tribble with teeth in the PIC episode, “The Bounty”, but that was genetically modified.

• Giant tribbles approaches the Protogies and Chakotay. In the TAS episode, “More Tribbles, More Troubles”, genetically modified tribbles were able to combine together in one large colony creature.

• Doctor K'ruvang is on the planet researching a way for the Klingon Empire to defeat the tribbles. In "More Tribbles, More Troubles" the Klingons had genetically engineered a creature called a glommer to eat tribbles.

    • K’ruvang was sent to this planet by Martok, whom we last saw in either “What You Leave Behind”, or “The Least Dangerous Game”, depending on if you count an unlicensed Ferengi boardgame using his likeness.

• Chakotay askes how smart Rok-Tahk actually is, and Dal claims she fixed a core breach in 10 minutes, though he neglected to add that from Rok’s perspective in “Amok Time”, she had significantly more time, perhaps even years.

• Rok accidentally combining her DNA with that of a tribble resulted in a monstrosity. Edward Larkin also combined mixed his DNA into the tribbles in “The Trouble with Edward”.

• Dal mentions that like Rok-Tahk’s abomination, he too is a hybrid being created through combining the DNA of multiple species, as we learned in “Masquerade”.

• Quadrotriticale grain was introduced in “The Trouble With Tribbles”. Though in “More Tribbles, More Troubles”, Starfleet had developed quintotriticale grain.

Not my OC

Not my OC

• Janeway records the stardate 61898.2 in her vice admiral’s log.

• Janeway recounts the events of “The Devourer of All Things, Part II”

• It’s Doctor Crusher! From Star Trek! Doctor Crusher is voiced by Gates McFadden, who played the character on TNG.

    • ”She’s surprisingly hard to track down these days.” It was revealed in “Seventeen Seconds”, Doctor Crusher left Starfleet after learning she was pregnant with Jack.

• ”Been a while since the Shinzon incident.” Admiral Janeway did order the USS Enterprise E to Romulus in “Star Trek Nemesis”, but she didn’t have any interaction with Doctor Crusher in the film.

• ”Last I heard, he was busy with the Romulan evacuation.” We learned in “Remembrance” that Picard left the Enterprise E to to command Starfleet’s rescue armada ahead of the Romulan sun going supernova.

• There have been two Starfleet ships named for Archimedes, one mentioned in the Short Treks episode, “The Brightest Star”, and the Obena-class vessel seen in LDS’ “First First Contact”.

• ”I saw a glimpse of my future.” Dal looked at the timestream, despite being told not to, in “The Devourer of All Things, Part II”.

• “When I was your age, I was lost too. Lost my father, my heritage, my purpose.” As per “Tattoo”, Chakotay’s father died defending their colony. Chakotay would have been 40 or 41 at the time.

• ”I never truly belonged until I became Janeway’s Number One.” Janeway declared Chakotay first officer of the USS Voyager in “Caretaker”.

• We learned that the the USS Protostar’s proto-drive is powered by a literal protostar in “Terror Firma”.

• The episode picks up where the pervious episode, “The Devourer of All Things, Part II” left off, with the Protogies having located an older, grizzled, bearded Chakotay on a remote world. Chakoldtay immetately throws the CHAH-mooz-ee stone Dal was holding out to him at the end of the previous episode over his shoulder and goes back about the business of living off the land.

    • We see Chakotay whittling a chess set. Though as alternate dimension Kirk puts it in “Tomorrow and Tomorrow and Tomorrow”, the old fashioned, two-dimensional version, ”Basically idiot’s chess.”

• It’s the Emergency Janeway Hologram! From Star Trek! The EJH…died for lack of a better term when she sacrificed herself in “Supernova, Part 2”, but thanks to time travel, she’s back.

• We learn that from Chakotay’s perspective, it’s been ten years since he was rescued from Solumn by the Protogies in “Who Saves the Saviors”.

• Chakotay explains that he and Adreek stranded the USS Protostar to prevent the Vau N’Akat weapon learned about in “A Moral Star, Part 2” from reaching the Federation, and Dal recounts how the Protogies set off the weapon in “Supernova, Part 1” and then destroyed the Protostar in “Supernova, Part 2”.

• The first instance of an ion storm in Trek was in the season one TOS episode, ‘The Galileo Seven”.

• Zero finds the Protostar’s dedication plaque, and we learn that the ship was launched on stardate 59749.1. Assuming stardates happen sequetionally, that would put the launch of the Protostar after the events of all or most of season 5 of LDS, the latest stardate for which we have is 59499.6, “Fully Dialated”.

    • The Protostar’s dedication plague has the quote, “It is not in the stars to hold our destiny, but in ourselves,” which seems to paraphrase a line of William Shakespeare’s “Julius Ceaser” and is attributed to him on many internet quote sites, but is not actually from the Bard’s works.

• Jankom sets about repairing the broken down runaway ground vehicle, which was introduced in “Dream Catcher”.

    • In this episode we learn the runaway has a hover function.

• ”Out of all the planets to maroon yourself on, you pick this P class nightmare?” Class P planets have not been previously mentioned on screen, but were introduced in the “Star Trek Maps” reference book, published in 1980. According to the “Star Trek Star Charts” reference book, Class P worlds are over 80% glaciated. Assuming Jankom is right, Chakotay apparently marooned the Protostar in a warm spot.

• Dal discovered Adreek’s skeleton, and we learn that Aurelian skulls have spurs of bone projecting from them, presumably covered by the feathers.

• The episode opens in the office where Wesley took the Protogies at the end of “The Devourer of All Things, Part I”, which appears to be based on Gary Seven’s office from “Assignment: Earth”.

    • Wesley confirms that it is not the actual office from “Assignment: Earth”, but a replica mimicking that office to train the Travellers’ field agents.

    • The newspaper in the office has a headline reading “Apollo VII Launches.” There was an Apollo VII mission patch displayed behind the bar of the 602 Club in “First Flight”.

      • The story of “Assignment: Earth” did feature a rocket launch, but that was for an orbital nuclear weapon platform, which Gary Seven was able to sabotage and detonate.

    • When Wesley turns around the bookcase revealing a hidden computer identical to the Beta 5 computer as seen in “Assignment: Earth”

• Commander Tysess swears on the Wall of Heroes to protect Maj’el with his life. The Wall of Heroes was first mentioned in “United” when Shran said he would take Archer’s blood there after killing him in an honour duel.

• ”Fall back to the battle bridge!” The USS Voyager A is the only ship other than the USS Enterprise D to have a battle bridge mentioned in dialogue.

• Admiral Janeway shows up wearing a tank top, a look she first sported in “Macrocosam”.

• ”Tom Paris taught me that one.” Janeway and Paris spent a lot of time together during their time in the Delta Quadrant, particularly in the episodes “Time and Again”, and “Threshold”.

• The Voyager A’s shuttles are armed with quantum torpedoes. We’ve previously seen runabouts armed with micro-torpedoes, but this is the first shuttlecraft that has been explicitly said to be equipped with torpedoes of any sort.

    • The shuttle is also able to survive the detonation of a full spread of quantum torpedoes at close range.

• ”Now, if you six would step under the modified Boreth crystals near the Orb of Time, I can get the quantum signature readings I need.” We learned in “Through the Valley of Shadows” that time crystals are a naturally occurring mineral on the Klingon monastery world of Boreth. The Cardassians returned Orb of Time to the Bajorans in the episode “Trials and Tribble-ations”.

• ”Fine, but Jankom’s still not sure this won’t scramble his genes like a Jiballian omelette.” Neelix claimed his seven-spice Jiballian omelette was famous in “Prototype”.

• Janeway recognizes Wesley despite the two never having met previously. This is because there’s only ever about seven people on any given Starfleet ship that do anything, so everyone in starfleet knows who they are. See: all of Star Trek.

Not my OC

Not my OC