Summary

When TV shows collide in crossing over episodes , it can leave in some of the most unforgettable minute that forever change both display . A idiot box crossover sees the character reference of one show intermix with those from another , often connecting plots , themes , and spell styles in the process . Sometimes , crossover voter sequence link shows from the same universe , setting up spinoffs or reunite former mold mates . In other instances , crossovers link two or more unexpected show together to produce a dynamic television installment .

A good crossover can keep a show aliveand add new dimensions to its already - existing story . The writing can land out fresh facet of a character or give a tv set universe a wider sensation of realism . While many crossovers are thrown-away one - injection , some have Brobdingnagian impact on their respective shows , evermore commute the characters and plot .

10I Love Lucy And The Adventures Of Superman

I Love Lucy Season 6, Episode 13

Superman ’s coming into court inI Love Lucy is considered the first sitcom crossing over instalment . In anI Love Lucyinstallment title “ Lucy and Superman , ” Lucy ( Lucille Ball ) tries to make Little Ricky ’s ( Keith Thibodeaux ) birthday company outshine everyone else ’s . Lucy solicit Ricky ( Desi Arrnaz ) to use his connections to get George Reeves to assist the party as Superman . When Reeves ca n’t make it , Lucy dresses up as Superman herself .

In trueI Love Lucyfashion , Lucy ’s sublime entrance — which involve standing out on the ledge of their third - floor flat and leaping in through the window — go terribly untimely . Fortunately , Superman doer George Reeves drag in to lay aside the sitcom ’s heroine . Reeves is not credit for his role in this 1957 sitcom episode , as Ball did n’t desire baby to know Superman was n’t substantial . Still , this was a game - changer at the time it air , and it ’s a fun chapter of the show to look back on .

9Grey’s Anatomy And Station 19

Grey’s Anatomy Season 17, Episode 7 | Station 19 Season 4, Episode 6

Grey ’s Anatomyfrequently crosse over with spinoffStation 19 , butthe expiry of Andrew DeLuca(Giacomo Gianniotti ) occurs in one of the most significant crossover episodes . Grey ’s Anatomyfans were not give the closure of learning how DeLuca die in season 17 , episode 7 . Instead , they had to tune in toStation 19season 4 , episode 6for further details . In the crosswalk instalment with the fellow Shondaland show , it ’s revealed that the doctor was brutally stab while in pursuit of a sexual urge trafficker .

InStation 19season 4 , DeLuca cover down a sex trafficker nominate Opal ( Stephanie Kurtzuba ) . At the end of the episode , a man bumps into DeLuca and knocks him to the ground . Grey ’s Anatomyshows his tragic fate , as he is rushed to Grey Sloan Memorial . His absence seizure is feel in both series , and it ’s one of thewaysGrey ’s AnatomyandStation 19crossovers have changed both showsforever .

8Chicago Med, Chicago Fire, And Chicago P.D.

Chicago Fire Season 8, Episode 4 | Chicago Med Season 5, Episode 4 | Chicago P.D. Season 7, Episode 4

NBC’sChicagofranchise has staged crossoversbefore, but none were as ambitious as its three-part “Infection.” This crossover sees characters fromChicago Fire, Chicago Med,and ChicagoP.D.working together to deal with flesh-eating bacteria. This three-hour crossover blends genres, asChicago Medis a soap, ChicagoFireis a lighter drama, and ChicagoP.D.isa procedural.

It set off when Matthew Casey ( Jesse Spencer ) sees a human race collapsing during a Chicago Bears game . Upon closelipped inspection , it ’s revealed that the guy has a flesh - eat transmission on his leg . His last Good Book are " BRT . " While responding to a university fire , the squad notices the same letters written on the wall . This leads to an investigating , which causes a massive narrative to unscramble — one that change everything by demonstrate what all three shows are open of when they make out together .

7Scandal And How To Get Away With Murder

Scandal Season 7, Episode 12 | How To Get Away With Murder Season 4, Episode 13

Thecrossover event betweenHow to Get aside with MurderandScandalbrings together two of the most powerful woman on primetime TV.How To Get Away With Murder’sAnnalise Keating ( Viola Davis ) teams up withScandal ’s Olivia Pope ( Kerry Washington ) to knead on a class - action suit regarding the mass immurement of Black people in America . The riotous - trailing reform comes before long after Olivia ’s declivity from political grace , making it more challenging for Annalise .

In the first part of the crossover case , Olivia , who is now teach , write " How to last a dirt " on the blackboard , recall the first sequence ofHow To Get off With Murder . The crossover installment celebrates the differences between the two ambitious cleaning woman , with the pair not afraid to criticize the other ’s flaws . Their conversation in the beauty store feel quietly revolutionary , considering the responsibility of wealthy pitch-black women .

6Ally McBeal And The Practice

Ally McBeal Season 1, Episode 20 | The Practice Season 2, Episode 26

David E. Kelly ’s two effectual series share a murder guinea pig in this 1997 crossover . Ally McBealwas on Fox , andThe Practicewas on ABC , yet the two rival meshing came together to help out their star writer . With one show having a more comedic tone and the other own a sour one , the plot somehow manages to find elements that complement both styles . friend McBeal’sratings were struggling at this level , sothe show might not have had further season without this crossing over .

In this crosswalk , Ally McBeal ’s ( Calista Flockhart ) firm treat its first condemnable case involving Maria Hanson , a womanhood accused of murdering her married man with an ax . Because the lawyers at her firm , Pisces and Cage , have sundry smell about accepting a criminal case , they go up Bobby Donnell ( Dylan McDermott ) , whose practice has a repute for excelling in criminal constabulary . It ’s a seamless room to flux two Boston - base show and was one of the first successful multi - connection crossovers .

5Homicide: Life On The Street And Law & Order

Law & Order Season 6, Episode 13

Law & Orderhas produced three two - part crossovers withHomicide : Life on the Street . A case would get withLaw & Orderin New York City for part 1 before moving the activity to Baltimore for part 2 . One of the most significant of the crossovers in season 6’s"Charm City " sees the first appearance of Richard Belzer ’s Detective John Munchin theLaw & Orderworld .

In this crossover installment , Detectives Pembleton ( Andre Braugher ) and Bayliss ( Kyle Secor ) collide with Briscoe ( Jerry Orbach ) and Curtis ( Benjamin Bratt ) when they come to New York to investigate a subway explosion . Upon the cancellation ofHomicide : Life On The Streetin 1999 , Richard Belzer was offered a unconstipated slot as John Munch onSpecial Victims Unit . Munch appeared in a total of 10 serial publication across five networks since his debut in 1993 .

4Law & Order: SVU And Law & Order: Organized Crime

Law & Order: SVU Season 22, Episode 9 | Law & Order: Organized Crime Season 1, Episode 1

Elliot Stabler ’s ( Christopher Meloni ) return to theLaw & Orderversewas a two - hour event that kicked off theOrganized Crimespinoff . Both theSVUepisode andOrganized Crime’sopening episodefollow the murder of Detective Elliot Stabler ’s wife . This is Stabler ’s first coming into court in the NBC drama after a ten , with Meloni having left the show in season 12 .

After reuniting Stabler with his longtime partner , Detective Olivia Benson ( Mariska Hargitay ) , the show finally explains what happened to him . SVUreveals Stabler was living in Italy with his kinsfolk until his married woman ’s murder . Stabler ’s graphic symbol inLaw & Order : mastermind Crimeseeks to reconstruct his lifespan after his withering loss , fall in an elite undertaking force that is looking to take down the metropolis ’s powerful deplorable syndicates one by one .

3Angel And Buffy The Vampire Slayer

Angel Season 1, Episode 8

Buffy makes her appearance only eight episode into Angel ’s entry spinoff season . After a battle with a demon plow Angel into a human being , his ex - girlfriend Buffy come to see . The yoke bask in the glow of being capable to truly be together . As promptly as they are reunited , they are torn apart whenAngel sacrifices his humanityto protect Buffy .

Unable to live with the cognition of what a relationship with Buffy would have been like , Angel visits the Powers That Be and asks them to erase the day . As Buffy kiss Angel sayonara , she promises to always remember their modified fourth dimension together . She ultimately forgets their one stark twenty-four hours , while Angel is stuck remembering it forever . AngelandBuffy The Vampire Slayerfrequently sweep over , but no moment was as powerful as this season 1 grief .

2Supergirl, Arrow, The Flash, And Legends Of Tomorrow

Supergirl Season 3, Episode 8 | Arrow Season 6, Episode 8 | The Flash Season 4, Episode 8 | Legends of Tomorrow Season 3, Episode 8

In December 2019 , The CW set up the ambitious crossing eventCrisis On Infinite Earths , which spanned several of the internet ’s Arrowverse show . Not only did heroes from the Arrowverse get regard inCrisis on Infinite ground , but the crossover brought inSmallville ’s Clark Kent ( Tom Welling ) , Lucifer ( Tom Ellis ) , Brandon Routh ’s Superman , and Ezra Miller ’s Flash . This crossing was the first metre theArrowverse and the DCEU know each other . The reach of this crossing was practically unprecedented for television , delivering Avengers - level teamwork on the modest screen .

1The Flash, Supergirl, Legends Of Tomorrow, And Arrow

The Flash Season 3, Episode 8 | Supergirl Season 2, Episode 8 | Arrow Season 5, Episode 8 | DC’s Legends of Tomorrow Season 2, Episode 7

cheer by the 1989 DC Comics event , Invasion!was an ambitious crossover that brings Flash , Arrow , and the Legends of Tomorrow together . This TV event also project Supergirl heading to Earth-1 after her television set show jumped from CBS to The CW . The TV upshot was part ofArrow’s100th instalment celebration and go through deceased characters like Laurel Lance and Moira Queen return via a dream reality .

This TV crosswalk found Supergirl interact with her fellow superheroes for the first clock time and also view Brandon Routh return as Superman . Invasion!also mark the first coming into court of the abandoned STAR Labs airdock . From addressing the rebound of Barry ’s recent timeline tampering to the epic combat with Dominators , " Invasion ! " was the first of its kind in terms of proportionality and storytelling . Unlike its predecessors , this crossover did n’t have to worry about ready up a new show , allowing it freedom with its mould and plot of land .

Cassian in Andor Season 2

KX-Droid Staring At Syril in Andor Season 2

Star Wars Stormtrooper

Characters from the Grey’s Anatomy and Station 19 and an image of Angel and Buffy from the crossover episode

George Reeves flexing as Superman and Lucille Ball as Lucy in I Love Lucy

Andrew de Luca Death Greys Anatomy

One Chicago Crossover with cast wearing Chicago Bears shirts

Viola Davis and Kerry Washington in How to Get Away With Murder and Scandal Crossover

Ally McBeal and The Practice crossover episode starring Dylan McDermott and Calista Flockhart

Law and Order Charm City

Angel and Buffy I Will Remember You