10 Best Crossover Episodes In Star Trek History 

Not only was Trials and Tribble-ations a technical triumph, it was just so much fun!! I'm glad it was #1!!

One of my favorite trivia bits about "Trials and Tribble-ations" is that the writer of the original episode, David Gerrold, actually makes a cameo in the DS9 crossover. He is the older crewman seen on the floor with some tribbles as they are starting to multiply. The scene is also briefly seen in this video.

I love how Deep Space Nine was the link between TNG and STV when the Enterprise dropped off Sisko to his new post and Voyager dropped in for a pit stop before their rendezvous with the Caretaker.

Riker: Worf, where is Data? Worf: Escorting an Admiral from Starfleet Medical who doesn't want his molecules scattered across the universe.

Me watching Pathfinder for the 100th time: "Ok, this time I'm gonna make it!" Janeway: "...Keep a docking bay open for us" Me: **River of tears**

anytime a star trek episode has Reginald Barclay, Vic Fontaine or EMH/Zimmerman as main focal point I immediately know it is going to be one of my favorite episodes.

The reason they tied in Sulu's ship on Voyager was because it was the thirtieth anniversary of the original Trek, so both DS9 and Voyager did Original Series crossovers.

Voyager episode with the two Ferangi who had been trapped in the delta quadrant from a prev next Generation episode, crossover Yes or No?

The 2 temporal investigators names were, Dulmur and Lucsly. Anagrams of Mulder and Scully.

Surprised there was no mention of _In a Mirror, Darkly_ (ENT S4 E18,19). Taking place entirely in the Mirror Universe, the evil versions of the NX-01's crew travel to Tholian space in pursuit of a Federation distress signal. Once there, they discover the _Defiant;_ not the ship from DS9 but rather the Enterprise's sister ship from The Tholian Web (TOS S3 E09), which it turns out was displaced in time as well as between universes. (The position of the corpses on the Defiant's bridge is exactly replicated from that episode.) The Tholians are studying the advanced ship in an attempt to replicate it, but Mirror Archer & co. manage to steal it, albeit at the cost of letting the Tholians destroy the Mirror Enterprise. Archer and crew spend the rest of the episode on board the Defiant, a perfect replica of the original series' Enterprise, and several crew members even change into TOS-style uniforms. Mirror Archer and Reed fight a Gorn that stowed away.

“You aren’t going to tell us you were meant to go back in time? That that was the way it was ALWAYS supposed to be?” “No” “Good. We hate that.”

Alien to Scotty: what is it? Drunk Scotty: it's green Scotty to Data: What is it? Baffled Data: it is green

They left out the TNG episode "Birthright" where DS9's Dr. Bashir helps Data interpret his dreams. Still a nice list though.

"Beverly slaps the god damn taste out of her sons mouth." Birliant.

Trials and Tribble-ations was a hilarious episode, and wouldn’t have worked without that closing scene with the Promenade buried in Tribbles

If you are going to include"The Way of the Warrior", then why not "Blood Oath" ? You had all three of the original lingon Commanders from the original series meeting on DS-9, in order to finally kill the The Albino. If that doesn't scream "crossover"...

You didn't mention DS9 "Blood Oath" with the 3 TOS Klingon Captains Kang, Kor and Koloth. Now that was an awesome episode.

Picard was in "The Emissary" and Quark was in "The Caretaker".

6:30 well if you're going to bring up the Dr. Who Star Trek comic you may as well bring up the Star Trek Vs. X-Men comic, which I still believe was made just so they could make a joke about the two Dr. McCoys

Some one forgot the entirety of deep space 9 with o'Brien as originally a charecter in the next generation

Scotty and LaForge working together, with Scotty's experience and La Forge's knowledge.

I consider "In a Mirror, Darkly" a crossover episode, even though there's no actual characters that cross over. But the idea is ingenious - The Defiant in TOS winks out of existence in a weak part of space after being entrapped by the Tholians, only to reappear in the mirror universe in Enterprise's time, but still entrapped by the Tholians. There are many TOS series loose ends that could be made into crossovers, but I thought this one was very clever and is my favorite episode of the entire Enterprise run. I would have put it on this list.

I would go out on a limb and say that the acting by Patrick Stewart in the Sarek episode was probably the best I've seen.

So why isn't the DS9 episode "Emissary" on the list? One of the memorable scenes in that episode is when Sisko did not exactly hide his disdain for Picard.

"Bev slaps the taste out of Wesley's mouth" 😂🤣😂🤣😂🤣

Always loved when Data and Spock were interacting. It was always interesting to see them talk together.

Not ashamed to admit it,but when relics first aired, I cried like a baby. Tip Jimmy doohan, you will never be forgotten.

Zephraim Cochrane from the First Contact movie making a cameo in the first episode of Enterprise. Brent Spiner playing a scientist who works with genetic augments, though not Khan specifically. He later decided to try artificial life forms and said it would take multiple generations. The character was named Dr. Soong, a patrilineal ancestor of Data’s creator.

Not to mention, that the week that Unification part one aired for the very first time also happened literally within the very same week that Gene Roddenberry had just passed away and the first half of the episode was meant to be a symbolic passing of the torch as Picard had his final moments with Sarek was intended to represent Gene leaving us all.

"To kill the cybermen we must 'BLING' are weapons with gold, everyone, to the replicators!" - Captain Picard

What about the EMH doctor being in First Contact?

On "The Way Of The Warrior" (one of the best episodes on the whole franchise, by the way) there was a crossover with another recurring TNG character; Gowron. That frog-eyed monster was in more episodes of TNG than DS9 at that point.

Me, clicking on the video: TRIALS AND TRIBBLE-ATIONS OR GTFOOOOO

The TARDIS did appear, albeit in another form, in the Star Trek: Enterprise episode "Future Tense."

No mention of "Emissary", Deep Space 9's pilot episode? The Enterprise-D, Picard, and O'Brien in his TNG uniform all feature very prominently in that episode. As an aside, seeing Voyager docked at Deep Space 9 and Harry Kim and Tom Paris interacting with Quark in the Promenade was a very nice thing to see in the first episode of Voyager, though obviously not as awesome as seeing Picard and Sisko in the same room.

This was funny as well. BASHIR: That was close. O'BRIEN: Me. Of all the people in the lineup, he asks me who threw the first punch. BASHIR: And you lied to him. O'BRIEN: I lied to Captain Kirk. I wish Keiko could have been here to see it.

1:01 DS9 vs VOY "Through the Looking Glass" - Tuvok in mirror universe 2:02 TNG vs TOS "Sarek" - Sarek (Spock's father) 3:24 VOY vs TOS "Flashback" - Tuvok served on the Excelsior under Captain Sulu 4:37 DS9 vs TNG "Defiant" - Riker's transporter clone 5:39 TNG vs TOS "Generations" (Movie) - Kirk 5:49 TNG vs Doctor Who "Assimilation²" - (Comic books) (Ends 8:11) 8:16 VOY vs TNG "Pathfinder" - Barclay & Troi 9:27 TNG vs TOS "Relics" - Scotty 10:20 DS9 vs TNG "Way of the Warrior" - Worf joins DS9 11:23 TNG vs TOS "Unification" - Spock 12:25 DS9 vs TOS "Trials and Tribbleations" - DS9 crew goes back in time to "The trouble with Tribbles"

Thank you for not including the monstrosity that was Enterprise's last episode. That episode should have never happened.

I took Scottys work advice...If a job takes 45 minutes I tell my supervisor it is going to take me an hour and ten minutes 🤣

I agree with you on Worf. He wasn't a cast member until red was his new color

Reg was a fuckin bro. Easily my favorite underdog of the entire series.

What makes these crossover episodes and movies so good is that characters are the focus. Previously established characters that are well loved put into new situations. They took the time and worked for it to make sense that these characters would be interacting the way they are.

"Pathfinder" is one of my favourite episodes of Star Trek.

I would have included the Enterprise episode Regeneration, as it crosses over as a "sequel" to the First Contact movie, as well as ending with a transmission being sent to the Delta Quadrant that takes about 200 years to arrive which can be argued makes the Borg aware of humanity in the first place (apart from that little Q incident on the Enterprise D).

Some great ones to choose from here.. Personally I’d go with Relics and Unification. That moment were Scotty visits the Enterprise bridge on the holodeck is fantastic.

I miss deep space nine. Specially Worf and Jadzia Dax. Such a missed oporunity

For Tuvok in ST:GEN, that wasn’t really Tuvok; it was an unnamed character. If you note the lack of pointed ears, you have a very non-Tuvok character in the movie.

Loving these TrekCulture posts. I worked my way through watching Star Trek: Voyager then decided to go back to where it began for me as a child (Star Trek: The Next Generation). Finished watching TNG a week ago and am currently working my way through Star Trek: Deep Space Nine

That's not Tuvok in Generations. He's not even a Vulcan 🙄

Thumbs up for Rom; taking that back! No _Once More unto the Breach_ starring the first Klingon in Star Trek broadcast history, in his final Star Trek role.

The major problem with 'Mirror Universe' episodes is that considering the HUGE difference in Histories, the chance that the same people would even be alive at the same time to even meet and HAVE children with each other at the exact time they did in OUR Universe is slim to vanishing. Therefore, the chance that you would ever meet a double of yourself is practically impossible.

3:23 Picard was not in his ready room for the scene where he was blowing up emotionally with Sarek's emotions. That's one weird oversight.

Absolutely hilarious that the Doctor Who and Startrek Crossover are Borg and Cybermen, considering that the Borg were inspired by the Cybermen to begin with. Nice little nod to that in the comic.

The first item on the list isn't just a crossover with TOS, considering it is really a sequel to a TOS episode. Kira even talks about the influence our Kirk had in her universe.

Figured The Emissary would have made the list with the interactions with Sisko and Picard

I just watched Q-less for the first time and it's great, I would say it's one if my fav cross over episodes because Q keeps referring to the difference between Picard and Sisco lol.

Funnily enough, I didn't watch Star Trek, more of a Wars/Gate fan, but HEARING Trek meant Dad was home watching it downstairs after we went to bed. That meant everything was safe and alright. So being safe is hearing to Trek (mostly original series and Next Gen- but he loves all of them)

The episode of TNG where the ship was in the lethal scanner thing and everyone had to evacuate. Picard for back for a horse saddle and ends up running into Tim Russ who was part of a crew to steal stuff from the ships engines

You left out “These Are The Voyages”! I’m just kidding. 😂

Very good video. I really like the crossover episodes. And you're a delightful lunatic... 😆

I will be patiently waiting for my What Culture Christmas Party invitation. Thank you.

Great work. Well researched - and very well put together visually.

Correction on the start: It's the VISIBLE universe that has that size.

This was a good story idea for a video! Keep 'em coming!

This list needs to be updated!

No Reading Rainbow "The Bionic Bunny Show?"

“What is this a crossover episode?” Trials and Tribulations is great.

Absolutely I remember when that episode aired and they even did a special interview with the cast and crew loved Trials and Tribulations.

#7 Defiant -- The end of that episode teases the two-parter where the Tal Shiar & Obsidian Order team up to attack The Founder's homeworld and get crushed

My favourite crossover moment remains McCoy’s poignant, handing of the torch appearance at the close of TNG’s pilot episode, Encounter At Farpoint. “You treat her like a lady, and she’ll always bring you home”.

Thank you! That was a joy to watch

Very good collection of crossover episodes. The "Unification" episodes are great. I am really smitten with "The Inner Light". I consider that to be the finest STNG episode.

Computer: "Please specify by registry number" Scotty: "N-C-C-1-7-0-1, no bloody A, B, C or D" ;-)

For the bit about tuvok on the bridge of the excelsior in st6: all discontinuity in star trek can be explained away with; time travel butterfly effect stuff stemming from all the time travel in star trek. Yes every single last continuity problem can be explained as a butterfly effect from the time war in enterprise, time travel stuff in tos, time travel stuff from stng, ds9, voyager, star trek 4, first contact, and the first movie in the kelvin timeline. Yes all the continuity problems are from time travel mucking everything up.

The Trouble with Tibbles and the later episode on Deep Space was really good

Excellent! I’m surprised you didn’t touch on the fact that Scotty thought that Kirk had rescued him in “relics” even though he thought Kirk was dead at that point in the timeline.

In Trials & Trebble-ations it was great seeing Sisko meet Kirk as a fan . Plus the Temporal agent agreeing he would have done the same:) The greatest Captain of Star Trek.

I always thought "Regeneration" was a good one, not only as a crossover (Enterprise/First Contact), but as a good sequel to First Contact as well.

There is a book, Planet X, which is a crossover between X-Men and Star Trek TNG. It is really fun and well made, and they even have a good explanation at the end for the Crossover.

Hi, Yes, I was blown away at the time by the DS9 Tribble episode after seeing the original Trek (Tribble/Guineapig sillyness) with Kirk as a youngster & thinking (to my mind.) "tosh.." From what I can gather. They got the original film & lighting crew in for consultation on integrating the old with the new on that episode? & to my eye, it was flawless.. I have to admit to preferring the seemingly darker DS9. Lol, you probably guessed I'm more classic Star Wars. But even the Tribble DS9'er years previously outshines Rogue one. Regarding it's CGI homage of old characters. Though Vader was at his more brutal during the climax of R1. That said, I enjoyed your vid, & learned something new regarding the cannon of Doctor Who... Yep I also seem to switch allegiance regarding which "universe" I happen to be in at the time.. I just wannabe entertained in a genre that suits my taste. Anyhow, keep doing what you do...

Why was the episode when the Discovery crew visits the USS enterprise with PIke and Number one on it, not included?

A crossover video that is itself a crossover. Brilliant!

Been really looking forward to this installment, please add captions.

NICELY DONE. You hit all my favs. Except "In a MIrror Darkly" (mentioned by another poster. Which is surprising really... I thought it was well done.

Best channel ever. I love it when Adam is the host.

"The first is Rom." Nope. The canonical order is Nog, Rom, Zek, Brunt, Pel, and then Quark.

DS9 S2EP19 Blood Oath. Kang, from TOS and VOY (Flashback), along with Koloth and Kor. It's a enjoyable episode exploring aspects of the Trill, Kingons, commitment to friends, and getting old.

Lol! Crossover within a crossover! I love it! And I happily subscribe to both...

Can anyone tell me what the green numbers (and in one case, letters) are for in the upper right corner of the screen as each entry starts?

Excellent crossover transition, very fun.

Episode where Data has lightning thrown at him by some device of Dr. Bashir's. Same episode Cromwell speaks of Mogh.

I absolutely agree with #1 - "Trials and Tribbleations!" Much background production info available on how the original set proportions were [almost accidentally] achieved (which made it work); In OG-e[episode blends flawlessly executed;0 THIS was a true a Anniversary and tribute GEM!

The ultimate crossover? Trials and Tribble-ations 😊

Great video

The first is Rom. My favorite of your videos. Well done.

An updated version of this might be needed to take into account "Those Old Scientists"

In the trouble of Tribbles I love how word says ‘we don’t like to talk about it’ when questioned why he dosent look like a 1960s Klingon 😅

Sisko basically said screw the timeline, I got Captain Kirk’s autograph. Even the Temporal cop gave him props. Damn. Captain Sisko is awesome!

There was also a couple of X-Men and Star Trek crossovers. One in comic books, and the other was the novel "Planet X" by Michael Jan Friedman

What about "These are the voyages" I mean it contains many iconic faces