Supergirl ( TV series ) - wikipedia Supergirl ( TV series ) Supergirl Title card for the second season Genre Superhero Action Adventure Drama Science fiction Based on Characters by Jerry Siegel Joe Shuster Developed by Greg Berlanti Ali Adler Andrew Kreisberg Starring Melissa Benoist Mehcad Brooks Chyler Leigh Jeremy Jordan David Harewood Calista Flockhart Chris Wood Floriana Lima Katie McGrath Odette Annable Composer ( s ) Blake Neely Country of origin United States Original language ( s ) English No. of seasons No. of episodes 55 ( list of episodes ) Production Executive producer ( s ) Sarah Schechter Ali Adler Andrew Kreisberg Greg Berlanti Robert Rovner Jessica Queller Producer ( s ) Michael Grassi Ted Sullivan Michael Cedar Larry Teng Glen Winter Raymond Quinlan Location ( s ) Los Angeles, California ( 2015 -- 16 ) Vancouver, British Columbia ( 2016 -- present ) Cinematography Michael Barrett David Stockton Jeffery C. Mygatt Shamus Whiting - Hewett Editor ( s ) Andi Armaganian Barbara Gerard Harry Jierjian Camera setup Single - camera Running time 45 minutes Production company ( s ) Berlanti Productions DC Entertainment Warner Bros. Television Distributor Warner Bros. Television Distribution Release Original network CBS ( season 1 ) The CW ( season 2 -- present ) Picture format HDTV 1080i Audio format Dolby Digital 5.1 Original release October 26, 2015 ( 2015 - 10 - 26 ) -- present ( present ) External links Official website Production website Supergirl is an American superhero action - adventure television series developed by Ali Adler, Greg Berlanti and Andrew Kreisberg ( the latter two having previously created Arrow and The Flash ) that originally aired on CBS and premiered on October 26, 2015. It is based on the DC Comics character Supergirl, created by Otto Binder and Al Plastino, and stars Melissa Benoist in the title role. Supergirl is a costumed superheroine who is Superman 's cousin and one of the last surviving Kryptonians. The series is set in the Arrowverse, sharing continuity with the other television series of the universe. The series was officially picked up on May 6, 2015, after receiving a series commitment in September 2014, and received a full season order on November 30, 2015. On May 12, 2016, Warner Bros. announced that the series had been renewed for a second season and that it would move from CBS to The CW. It debuted on October 10, 2016. On January 8, 2017, The CW renewed the series for a third season, which began airing on October 9, 2017. Contents 1 Series overview 2 Cast and characters 3 Production 3.1 Development 3.2 Design 3.3 Filming 4 Broadcast 5 Reception 5.1 Critical reception 5.2 Ratings 5.3 Accolades 5.3. 1 Critics ' top ten lists 6 Arrowverse crossovers 7 Other media 8 Home media release 9 References 10 External links Series overview Main article : List of Supergirl episodes Kara Zor - El was sent to Earth from Krypton as a 13 - year - old by her parents Zor - El and Alura. Krypton was exploding, and Kara 's parents sent Kara in a spacecraft to Earth after her cousin. Kara was meant to protect her infant cousin Kal - El, but her spacecraft was knocked off course and forced into the Phantom Zone, where it stayed for 24 years. By the time the spacecraft crash landed on Earth, Kal - El had grown up and become Superman. The series begins eleven years later when the now 24 - year - old Kara is learning to embrace her powers and has adopted the superheroic alias `` Supergirl ''. In the first season, having hidden her powers for more than a decade, Kara is forced to reveal her powers, and becomes National City 's protector. Kara discovers that hundreds of the criminals her mother prosecuted as a judge are hiding on Earth, including her aunt Astra and Astra 's husband Non. She and her adoptive sister, Alex Danvers, discover that their boss, Hank Henshaw, is actually benevolent Green Martian J'onn J'onzz. She is aided by a few close friends and family who guard her secrets, including her cousin 's friend, James Olsen, and tech genius Winn Schott, Jr. In the second season, Kara and her allies deal with feuds between Earth 's native populace and extraterrestrial community, and investigate the shadowy organization Project Cadmus, masterminded by Lillian Luthor, mother of Superman 's archenemy Lex Luthor. At the same time, Kara becomes friendly with Lillian 's stepdaughter Lena Luthor, the new CEO of LuthorCorp, and struggles with romantic feelings for recent Earth arrival Mon - El, a survivor and prince from Krypton 's neighboring planet Daxam. James becomes the masked streetfighting vigilante Guardian ; Alex begins dating Maggie Sawyer ; and J'onn befriends a younger Martian, M'gann, from the White Martian race that killed his people. In the third season, Kara struggles with the loss of Mon - El after he is forced to leave Earth after the Daxamite invasion. When Mon - El later returns, he reveals that he has time - traveled to the 31st century and married a Titanian, Imra Ardeen, during his time there. This creates a complicated love triangle between the three. Mon - El has also founded the future 's superhero team, the Legionnaires and is one of their leaders, J'onn discovers his father M'yrnn Jonzz is alive and Alex deals with her heartbreak after breaking up with Maggie. Kara and Alex 's new friend, Samantha Arias, is unknowingly another Kryptonian survivor, and begins a sinister transformation that turns her from a loving single mother into the worldkilling weapon known as Reign. Season Episodes Originally aired Nielsen ratings First aired Last aired Network Rank Average viewership ( in millions ) 20 October 26, 2015 ( 2015 - 10 - 26 ) April 18, 2016 ( 2016 - 04 - 18 ) CBS 39 9.81 22 October 10, 2016 ( 2016 - 10 - 10 ) May 22, 2017 ( 2017 - 05 - 22 ) The CW 129 3.12 23 October 9, 2017 ( 2017 - 10 - 09 ) June 18, 2018 ( 2018 - 06 - 18 ) TBA TBA Cast and characters Main article : List of Supergirl characters Melissa Benoist stars as the series ' titular character, Supergirl. Melissa Benoist as Kara Zor - El / Kara Danvers / Supergirl : A 24 - year - old Kryptonian living in National City, who must embrace her powers after previously hiding them. She assists her adoptive sister as part of the Department of Extra-Normal Operations ( DEO ) as she discovered the truth that her adoptive father also worked for the DEO so they would not take her, while Alex 's co-workers at the DEO help her perfect her powers. Kara worked as Cat Grant 's assistant at CatCo. Benoist expressed her excitement over portraying the character, and being able to `` ( tell ) a story about a human being really realizing their potential and their strength ''. At the end of season one, Kara was promoted by Cat and became a junior reporter at the beginning of season two. Malina Weissman ( seasons 1 and 2 ) and Izabela Vidovic ( season 3 ) portray a young Kara. Mehcad Brooks as James Olsen / Guardian : A former Daily Planet photographer, James moved to National City and became the new art director for his former colleague, Cat Grant, at CatCo Worldwide Media. He is initially a potential love interest for Kara. Among his reasons for moving across the country are his breakup with his fiancée, Lucy Lane, and keeping an eye on the newly revealed Supergirl for Superman. While working at the Daily Planet, James received the Pulitzer Prize for taking the first photograph of Superman. In the second season, James becomes Guardian. He also becomes the acting CEO of CatCo after Cat Grant takes a leave of absence. Chyler Leigh as Alex Danvers : Kara 's adoptive sister. She is a scientist and government agent who works for Hank Henshaw at the DEO, serving as his right - hand. Having been extensively trained in combat after joining the DEO, Alex in turn provided rigorous training to Kara in order to decrease her reliance on her powers. Initially, like Kara, she becomes suspicious of the DEO and thus her own role upon learning of their father having worked there in order to protect Kara, but Alex ultimately learns that Henshaw is the Martian survivor J'onn J'onzz in shape - shifted disguise, whom her late father had rescued before his and the real Henshaw 's deaths. In season two, Alex continues to search for her father, while she meets and befriends Maggie Sawyer. She develops feelings for her, forcing Alex to confront her sexuality. Jordan Mazarati and Olivia Nikkanen portray a young Alex. Jeremy Jordan as Winslow `` Winn '' Schott, Jr. : A tech expert who worked alongside Kara at CatCo, he is Kara 's best friend and serves as one of her allies, helping her develop her costume and aiding her in her adventures. Winn has unrequited feelings for Kara and is a rival with James for her affection. However, at the end of `` For the Girl Who Has Everything '', Winn has accepted that it is best that they remain as best friends, and in `` Solitude '', he begins seeing Cat Grant 's new assistant, who is also Kara 's rival ; Siobhan Smythe, who is subsequently fired by Cat and who, in `` Worlds Finest '', becomes a supernatural metahuman supervillain called Silver Banshee. In the series, he is the son of Toyman. Cat nicknames him Toyman Junior after she finds out. In season two, Winn left CatCo to work at the DEO as a desk agent. He also works with James Olsen as his vigilante partner. David Harewood as J'onn J'onzz / Martian Manhunter : The head of the DEO who takes Hank Henshaw 's likeness after Henshaw is killed in Peru while hunting J'onn. J'onn takes Henshaw 's likeness in order to reform the DEO from within as well as to watch over Alex and Kara. The evolution of Henshaw was discussed during the filming of the pilot, with the executive producers jokingly saying that Harewood would be a good actor to play the Martian Manhunter in a potential television series, to which DC Comics ' Geoff Johns asked why it could not be done in Supergirl. Harewood reflected that he had difficulty `` find ( ing ) an angle to play Hank Henshaw '' in the pilot, and became excited when he was told about the change to his character 's backstory. Harewood also recurs in the series as the real Hank Henshaw, who becomes Cyborg Superman. Calista Flockhart as Cat Grant : The outwardly shallow and superficial founder of the media conglomerate CatCo Worldwide Media, who feels, since she `` branded '' Kara as `` Supergirl '', that she has proprietary custody over the new hero. Before she founded CatCo, she was a gossip columnist at the Daily Planet, and before that, the personal assistant to the Daily Planet 's Editor - in - Chief, Perry White. Cat investigates and reveals that Supergirl is Superman 's cousin, which then causes Kara to become a target for some of Superman 's rogues gallery. Cat also serves as a mentor to Kara, dispensing advice about being a woman in a man 's world. In the episode `` Hostile Takeover '', she suspects that Kara is Supergirl. In the second episode of season two, Cat announces she is taking a leave of absence from CatCo, leaving James to run the company in her stead. In season three, she became the White House Press Secretary for President Olivia Marsdin. Chris Wood as Mon - El : A prince from the planet Daxam with similar powers to Superman and Supergirl, Mon - El lands on Earth in the pod at the end of season one. Floriana Lima as Maggie Sawyer : A detective for the National City Police Department who takes a special interest in the cases involving aliens and metahumans. Lima became a recurring actress for the third season, departing in the season 's fifth episode. Lima noted the role was only intended to last for one season. Katie McGrath as Lena Luthor : The CEO of L - Corp ( formerly known as Luthor Corp ) and the younger paternal half - sister of Lex Luthor. She arrives in National City after Lex has been incarcerated, hoping to rebrand Luthor Corp as a force for good. As the daughter of Lionel Luthor, to whom she is close, Lena tries to redeem her family name after Lex 's crimes have tarnished it and to break from her half - brother and step - mother 's legacy. Initially, she believed that she was the adopted daughter of the Lionel and Lillian Luthor, but Lena learns that she is actually Lionel 's illegitimate child from his extramarital affair. Lena meets Kara after Kara is assigned to interview Lena about L - Corp. Shortly after, the two develop a strong friendship. Camille Marty portrays a young Lena. Odette Annable as Samantha Arias / Reign : Another Kryptonian sent to Earth as an infant and single mother to her daughter Ruby. Samantha 's villainous alternate personality, Reign, emerges in the middle of season 3, but she is unaware of it and her alter ego 's actions. Production Development By September 2014, Warner Bros. Television was looking to create a television series centered around Supergirl. Executive producers for the series include Greg Berlanti ( also a creator / producer for Arrow and The Flash ), Ali Adler, who are both writing the script, and Berlanti Productions ' Sarah Schechter. DC Comics ' Geoff Johns is also expected to be part of the project. Titles under consideration for the series included Super and Girl. Berlanti confirmed the show shortly after, and stated it was in development and had yet to be pitched to networks. On September 20, it was announced that CBS had landed Supergirl with a series commitment, with an expected premiere in 2015 of the 2015 -- 16 television season. In January 2015, CBS Entertainment Chairman Nina Tassler revealed the show would be a procedural, saying, `` There will be ( crime ) cases, but what ( executive producers ) Ali Adler and Greg Berlanti pitched was a real series arc for her. The beauty of it is now with shows like The Good Wife and Madam Secretary, you can have serialized story elements woven into a case of the week. She 's a crime solver, so she 's going to have to solve a crime. '' In January 2015, it was announced by The Hollywood Reporter that Melissa Benoist would star as Supergirl. Benoist later revealed that auditioning for the part `` was a long, drawn - out, three - month process '' ; she was the first actress looked at for the role, although Claire Holt and Gemma Atkinson were also considered. In March 2015, Blake Neely, composer for Arrow and The Flash, revealed he would be composing for Supergirl. The show was officially picked up to series on May 6, 2015. It was originally set to premiere in November 2015, before being moved up to October 26, 2015. The pilot episode was screened at San Diego Comic - Con International 2015 on July 8 and 11, 2015. In July 2015, Adler spoke on how much influence Superman would have on the show, saying, `` Our prototype is the way the president is seen on Veep. It 's certainly ( inspired by ) so much of what Julia Louis - Dreyfus ' character goes through. Ultimately, this is a show about Supergirl and we really want to see it through her lens. '' On November 30, 2015, CBS ordered an additional seven episodes of Supergirl, for a full season of 20 episodes. On May 12, 2016, Warner Bros. Television announced that the series had been renewed for a second season of 22 episodes and would move to The CW. The season debuted in October 2016. With the move of the production to Vancouver, it was unclear if Calista Flockhart would remain with the series, as her original contract stipulated that she work near her home in Los Angeles. The CW president Mark Pedowitz said Flockhart wanted to remain with the series and that `` We 're in ongoing discussions... we 're happy to have her in ( in whatever capacity ) works out. '' Flockhart ultimately reached a deal to be recurring in the second season, with the production flying her to Vancouver every few weeks to film material. On January 8, 2017, The CW renewed the series for a third season, which debuted on October 9, 2017. The third season saw Jessica Queller and Robert Rovner become the series ' executive producers and co-showrunners along with Kreisberg, following Adler 's departure ; Adler will remain an executive consultant for the series. Both Queller and Rovner joined Supergirl midway through the first season as co-executive producer and consulting producer, respectively, with Rovner promoted to executive producer ahead of the second season. Design Supergirl 's design was intended to be a modern take on the classic look of the character. The costume for Supergirl was created by Colleen Atwood, who also designed the costumes for Arrow and The Flash. Benoist stated that she is aware of the costume worn by Kara in more modern depictions of in the comics, and expressed that the `` micro-mini hemline '' of the skirt in the version created by Michael Turner could be `` a little daunting... but that 's good. I like being pushed. '' Promotional photos of Benoist wearing Atwood 's design were released on March 6, 2015. Atwood indicated that she wanted to `` embrace the past... but more importantly, thrust her into the street - style action hero of today. '' Atwood later revealed details about the costume such as the cape being fastened to an undersuit so as not to pull the costume and that the fabric used was Eurojersey. The reveal of the Martian Manhunter costume in `` Human For a Day '' was created through visual effects, though a physical version was created to appear in later episodes, with it proving to be one of the most challenging costumes for the costume team. Reception of the Supergirl costume upon its reveal was mixed. Entertainment Weekly 's Natalie Abrams commented that the new look of the costume looks and feels different in a good way. The new costume avoids exposing the character 's midriff, as it does in the Michael Turner version of the costume from the comics, as well as having Benoist wear stockings underneath the skirt with over-the - knee boots. Abrams compared the texture of the costume to that worn by Henry Cavill as Superman in Man of Steel, as well as the positioning of the cape on the suit, and the decision to do away with the bright blue and red color scheme. Andrew Dyce, from Screen Rant, found the new costume to perfectly balance itself between classic nostalgia and modernism. The Washington Post noted that Atwood 's design was successful, praising her ability to take `` cartoon - y tints '' and moving them to darker tones. E ! Online was less impressed with the design, negatively comparing it to a `` cheap Halloween costume '', with washed out colors, and not buying into the `` gritty, ' street style ' '' look Atwood was intending. TV Guide questioned Atwood 's design, and noted that although the promotional image has Benoist trying to appear as a powerful hero, the thigh - high boots and pleated skirt comes across as a `` model advertising a moderately - priced Halloween costume ''. Filming In February 2015, it was announced that Andrew Kreisberg, co-creator of Arrow and The Flash, had joined the series as a writer and executive producer ; and Arrow / The Flash and Smallville alum Glen Winter was announced to be directing the pilot. Principal photography for the pilot took place from March 4 to March 29, 2015. Filming locations included the Warner Bros. lot, where Lois and Clark was shot. Each episode cost approximately $3 million to broadcast, which is one of the highest license fees ever for a first year show. The second season was filmed in Vancouver, rather than Los Angeles where the first season was shot. This was done to reduce the high production costs of the series, one of the issues that made CBS wary to renew the series on their network. Filming for the third season began in Vancouver on July 6, 2017, and is expected to continue until April 24, 2018. Broadcast In Canada, Supergirl aired in a sim - subbed simulcast on Global with the American broadcast in the first season ; the second season saw it move to Showcase in the same arrangement. The series premiered on October 29, 2015, in the United Kingdom on Sky One. The series premiered in Australia on December 6, 2015 on FOX8. Reception Critical reception Season Critical response Rotten Tomatoes Metacritic 95 % ( 74 reviews ) 75 % ( 33 reviews ) 100 % ( 22 reviews ) 81 % ( 4 reviews ) 86 % ( 14 reviews ) TBA Review aggregation website Rotten Tomatoes gave the series premiere a 95 % approval rating from critics and with an average rating of 7.6 / 10 based on 74 reviews. The site 's consensus states : `` Melissa Benoist shines as Superman 's plucky little cousin in Supergirl, a family - friendly comic - book adaptation that ditches cynicism for heart. '' Metacritic, which uses a weighted average, assigned a score of 75 out of 100 based on reviews from 33 critics, indicating `` Generally favorable reviews ''. Cliff Wheatley of IGN gave the pilot episode a 7 / 10, praising Melissa Benoist 's performance as Kara and the fun take on the Superman mythos. Rotten Tomatoes gave the premiere of the second season a 100 % approval rating from critics and with an average rating of 8.3 / 10 based on 22 reviews. The site 's consensus reads, `` The arrival of the more famous cousin in Supergirl does nothing to detract from the show 's lead, who continues to deliver strength, action, and relatability. '' Metacritic assigned a score of 81 out of 100 based on reviews from 4 critics, indicating `` Universal acclaim ''. The third season holds an 86 % rating on Rotten tomatoes based on 14 reviews. Ratings Season Timeslot ( ET ) Network Episodes First aired Last aired TV season Rank Avg. viewers ( millions ) 18 -- 49 rating ( average ) Date Viewers ( millions ) Date Viewers ( millions ) Monday 8 : 00 pm CBS 20 October 26, 2015 ( 2015 - 10 - 26 ) 12.96 April 18, 2016 ( 2016 - 04 - 18 ) 6.11 2015 -- 16 39 9.81 2.4 The CW 22 October 10, 2016 ( 2016 - 10 - 10 ) 3.06 May 22, 2017 ( 2017 - 05 - 22 ) 2.12 2016 -- 17 129 3.12 1.0 23 October 9, 2017 ( 2017 - 10 - 09 ) 1.87 June 18, 2018 ( 2018 - 06 - 18 ) TBD 2017 -- 18 TBD TBD TBD Accolades Year Award Category Nominee ( s ) Result 2015 Critics ' Choice Television Awards Most Exciting New Series Supergirl Won 2016 People 's Choice Awards Favorite New TV Drama Supergirl Won Saturn Awards Best Actress on Television Melissa Benoist Nominated Best Guest Starring Role on Television Laura Benanti Nominated Best Superhero Adaptation Television Series Supergirl Nominated Best Supporting Actress on Television Calista Flockhart Nominated Breakthrough Performance Melissa Benoist Won Teen Choice Awards Breakout Series Supergirl Nominated 2017 GLAAD Awards Outstanding Drama Series Supergirl Nominated Kids ' Choice Awards Favorite TV Show -- Family Show Supergirl Nominated Saturn Awards Best Actress on a Television Series Melissa Benoist Won Best Guest Performance on a Television Series Tyler Hoechlin Nominated Best Superhero Adaptation Television Series Supergirl Won Best Supporting Actor on a Television Series Mehcad Brooks Nominated Teen Choice Awards Choice Action TV Actor Chris Wood Nominated Choice Action TV Actress Melissa Benoist Won Choice Action TV Show Supergirl Nominated Choice Liplock Melissa Benoist and Chris Wood Nominated Choice TV Ship Melissa Benoist and Chris Wood Nominated Choice TV Villain Teri Hatcher Nominated 2018 Saturn Awards Best Actress on a Television Series Melissa Benoist Pending Best Superhero Adaptation Television Series Supergirl Pending Best Supporting Actress on Television Odette Annable Pending Critics ' top ten lists 2015 No. 10 People Unranked -- Variety No. 7 The Washington Post 2016 No. 5 Cinema Blend Arrowverse crossovers See also : The Flash ( 2014 TV series ) and Arrowverse In November 2014, Berlanti expressed interest in Supergirl existing in the Arrowverse, the same universe as his other series Arrow and The Flash, and in January 2015, The CW president Mark Pedowitz revealed that he was also open to a crossover between the series and networks ( due to Berlanti executive producing all three and The CW being co-owned by CBS ). However, CBS Entertainment chair Nina Tassler stated that month that `` those two shows are on a different network. So I think we 'll keep Supergirl to ourselves for a while. '' In August 2015, Tassler revealed that while there were no plans at the time to do crossover storylines, the three series would have crossover promotions. Pedowitz regretted passing on the series when presented it in mid-2014, saying, `` We had n't launched The Flash yet, we were n't ready to take on another DC property. In hindsight we probably should 've gone that direction... Sometimes you lose great shows. '' In January 2016, during the Television Critics Association press tour, he said that The CW was still interested in a crossover with Supergirl if the producers could find a way to do it, and Berlanti added that while no official conversations had taken place, internal ones had concerning how a crossover would work. He also noted that for a crossover to happen during Supergirl 's first season, it would have to be figured out `` in the next month or so ''. Glenn Geller, Tassler 's successor at CBS, then stated on the matter, `` I have to be really careful what I say here. Watch and wait and see what happens. '' On February 3, 2016, it was announced that Grant Gustin, who appears as Barry Allen / Flash on The Flash, would appear in the eighteenth episode of the first season, `` Worlds Finest ''. While no plot details on the episodes were released at the time, Ross A. Lincoln of Deadline.com noted that `` the in - universe reason '' for the crossover was due to Barry 's ability to travel to various dimensions, thus implying that Supergirl exists on an alternate Earth to the Arrowverse in a multiverse. The Flash episode `` Welcome to Earth - 2 '' confirmed this, showing an image of Benoist as Supergirl during a sequence where characters travel through that multiverse. The earth that the series inhabits is Earth - 38 in the Arrowverse multiverse, and has been informally referred to as `` Earth - CBS '' by Marc Guggenheim, one of the creators of Arrow. During the second season, Supergirl appears in `` Invasion ! '', a crossover episode of The Flash, Arrow and Legends of Tomorrow, when she 's recruited by Barry Allen and Cisco Ramon at the end of `` Medusa '' to help fight off an invasion by the Dominators. Supergirl and The Flash also featured in a musical crossover, featuring several covers of existing songs along with two original numbers. Similar to `` Invasion ! '', the crossover begins at the end of the Supergirl episode `` Star - Crossed '' and primarily takes place during The Flash episode `` Duet '', featuring the Music Meister as the antagonist who puts both The Flash and Supergirl in a shared hallucination. After `` Invasion ! '', Guggenheim felt `` If there 's an appetite for it from the fans and from the network, '' the crossover next year could be `` a proper four - part crossover. '' At the 2017 Paleyfest event, Kreisberg reiterated the creative team 's intention to do a full four - way crossover the following year. At San Diego Comic Con 2017, it was confirmed that another four - way crossover would take place, with Supergirl playing a larger role than the previous season. The four - way crossover event, titled `` Crisis on Earth - X '', took place on November 27 and 28, 2017, across Supergirl and Arrow ( on the first night ) and The Flash and Legends of Tomorrow ( on the second night ). Other Media Beginning in January 2016, DC Comics launched a 13 - issue, bi-weekly digital comic, Adventures of Supergirl. Written by Sterling Gates and drawn by a rotating team of artist including Bengal, Jonboy Meyers, Emanuela Lupacchino, and Emma Vieceli, the comic, while not directly tying into the show, tells stories set in the universe of the show. Home media release Supergirl : The Complete First Season Set details Special features 20 episodes 5 - disc DVD set / 3 - disc Blu - ray set English ( Dolby Digital 5.1 Surround ) English SDH, Spanish and French subtitles Subtitles : English 2015 Comic - Con Panel Deleted Scenes Gag Reel Featurettes The Man From Mars Krypton : A World Left Behind DVD release dates Region 1 Region 2 Region 4 August 9, 2016 July 25, 2016 July 27, 2016 References Jump up ^ Porter, Rick ( June 17, 2016 ). `` The CW fall TV 2016 premiere dates : ' The Flash ' and ' No Tomorrow ' kick off October rollout ''. TV by the Numbers. Retrieved June 17, 2016. ^ Jump up to : Mitovich, Matt ( January 8, 2017 ). `` The CW Renews The Flash, Supernatural, Crazy Ex and 4 Others ''. TVLine. Retrieved January 8, 2017. ^ Jump up to : Andreeva, Nellie ( June 8, 2017 ). `` The CW Sets Fall 2017 Premiere Dates For ' Dynasty ' & ' Valor ' And Returning Series Returning Series ''. Deadline.com. Archived from the original on June 8, 2017. Retrieved June 8, 2017. ^ Jump up to : Andreeva, Nellie ( September 19, 2014 ). `` ' Supergirl ' Drama From Greg Berlanti & Ali Adler Lands CBS Series Commitment ''. Deadline.com. Retrieved September 19, 2014. Jump up ^ Mitovich, Matt Webb ( October 30, 2014 ). `` Meet CBS 's Supergirl ( and Her Sister ), Get Scoop on Kara 's Big Entrance ''. TVLine. Retrieved October 30, 2014. ^ Jump up to : de Moraes, Lisa ( May 26, 2016 ). `` Full 2015 -- 16 TV Season Series Rankings : ' Blindspot ', ' Life In Pieces ' & ' Quantico ' Lead Newcomers ''. Deadline.com. Archived from the original on May 27, 2016. Retrieved May 27, 2016. ^ Jump up to : de Moraes, Lisa ( May 26, 2017 ). `` Final 2016 -- 17 TV Rankings : ' Sunday Night Football ' Winning Streak Continues ''. Deadline.com. Archived from the original on June 2, 2017. Retrieved May 26, 2017. ^ Jump up to : Mitovich, Matt Webb ( December 8, 2017 ). `` Supergirl to Turn Monday Time Slot Over to Legends for 9 Weeks ''. TVLine. Retrieved December 8, 2017. Jump up ^ Andreeva, Nellie ( January 22, 2015 ). `` Melissa Benoist Is Supergirl : CBS Pilot Casts ' Glee ' Actress In Lead Role ''. Deadline.com. Retrieved January 22, 2015. ^ Jump up to : Goldman, Eric ( May 13, 2015 ). `` CBS Schedule : Supergirl Airing on Mondays ; Person of Interest Held for Midseason ''. IGN. Retrieved May 13, 2015. ^ Jump up to : Mitovich, Matt Webb ( October 31, 2014 ). `` CBS ' Supergirl Casting Jimmy Olsen, Cat Grant and Others ''. TVLine. Retrieved October 31, 2014. ^ Jump up to : Huver, Scott ( February 25, 2015 ). `` Melissa Benoist Embraces `` Supergirl 's '' Iconic Qualities & Powerful Humanity ``. Comic Book Resources. Retrieved February 25, 2015. Jump up ^ Goldberg, Lesley ( March 9, 2015 ). `` CBS Casts Young ' Supergirl ' ( Exclusive ) ''. The Hollywood Reporter. Retrieved March 9, 2015. ^ Jump up to : Swift, Andy ( September 5, 2017 ). `` Supergirl Recasts Two Key Roles ''. TVLine. Retrieved September 4, 2017. Jump up ^ Wagmeister, Elizabeth ( January 28, 2015 ). `` Mehcad Brooks Cast in CBS ' ' Supergirl ' as Melissa Benoist 's Love Interest ''. Variety. Retrieved January 28, 2015. Jump up ^ Berlanti, Greg ; Adler, Ali ; Kreisberg, Andrew ( November 23, 2015 ). `` How Does She Do It ? ''. Supergirl. Season 1. Episode 5. CBS. Jump up ^ Swift, Andy ( October 11, 2016 ). `` Supergirl EP Reveals James ' Future as DC Comics ' Guardian, Explains Why He and Kara Are ' Best as Friends ' ''. TV Line. Retrieved October 11, 2016. ^ Jump up to : Goldberg, Lesley ( February 26, 2015 ). `` CBS ' Supergirl ' Enlists Chyler Leigh, David Harewood ''. The Hollywood Reporter. Retrieved February 26, 2015. Jump up ^ Leigh, Chyler ( @ chy_leigh ) ( March 3, 2015 ). `` @ DavidHarewood : Just another day at the office. # Supergirl `` A pleasure meeting my boss yesterday at the # tableread ! ! '' ( Tweet ). Retrieved March 12, 2015 -- via Twitter. Jump up ^ Gerding, Stephen ( August 26, 2015 ). `` Official Supergirl Pilot Synopsis Lands Online ''. Comic Book Resources. Retrieved September 20, 2015. Jump up ^ Roffman, Marisa ( October 11, 2015 ). `` New York Comic Con : Supergirl adds Toyman to Villain Roster ''. The Hollywood Reporter. Jump up ^ Kimberly, Roots ( March 2, 2015 ). `` Supergirl Scoop : Jeremy Jordan to Play CatCo Tech Guru... and More ? ''. TVLine. Retrieved March 3, 2015. Jump up ^ Berlanti, Greg ; Adler, Ali ; Kreisberg, Andrew ( February 29, 2016 ). `` Solitude ''. Supergirl. Season 1. Episode 15. Event occurs at 09 : 20. CBS. Toyman Junior, you 're the computer expert. Fix this. access - date = requires url = ( help ) ^ Jump up to : Ratcliffe, Amy ( December 7, 2015 ). `` '' SUPERGIRL '' EPS, HAREWOOD & LEIGH DISCUSS TONIGHT 'S MAJOR REVEAL ``. Comic Book Resources. Retrieved December 8, 2015. Jump up ^ Abrams, Natalie ( November 21, 2016 ). `` Supergirl sneak peek : Cyborg Superman revealed ! ''. Entertainment Weekly. Retrieved November 22, 2016. ^ Jump up to : Nicholson, Matt ( February 23, 2015 ). `` Calista Flockhart Cast As Cat Grant In Supergirl ''. IGN. Retrieved February 23, 2015. Jump up ^ Ausiello, Michael ( July 20, 2016 ). `` Chris Wood Joins Supergirl Season 2 as ' Surprise ' Series Regular ''. TV Line. Retrieved July 20, 2016. Jump up ^ Damore, Meagan ( July 23, 2016 ). `` SDCC : `` SUPERGIRL '' CAST & CREW OFFER FANS THE SEASON 2 INSIDE SCOOP ``. Comic Book Resources. Retrieved July 25, 2016. ^ Jump up to : D'Alessandro, Anthony ( August 11, 2016 ). `` DC Superhero EPs At TCA : ' Flash ' & ' Supergirl ' Musical Crossover, Dolph Lundgren On ' Arrow ' & More ''. Deadline. Retrieved August 11, 2016. Jump up ^ Stanhope, Kate ( July 13, 2016 ). `` ' Supergirl ' Adds ' The Family ' Grad as Gay DC Character Maggie Sawyer ( Exclusive ) ''. The Hollywood Reporter. Retrieved July 13, 2016. Jump up ^ Swift, Andy ( May 26, 2017 ). `` Supergirl : Floriana Lima Steps Down as Series Regular, Will Recur in Season 3 ''. TV Line. Retrieved May 27, 2017. Jump up ^ Andreeva, Nellie ( March 22, 2017 ). `` ' Supergirl ' : Katie McGrath Promoted To Series Regular For Season 3 ''. Deadline.com. Retrieved March 22, 2017. Jump up ^ Ausiello, Michael ( August 4, 2016 ). `` Supergirl Lands Merlin 's Katie McGrath as Lex 's Sister Lena Luthor ''. TV Line. Retrieved August 9, 2016. Jump up ^ `` Supergirl Radio Season 2 - Episode 12 : Luthors ''. Acast. Retrieved March 2, 2017. Jump up ^ Agard, Chancellor ( May 31, 2017 ). `` Supergirl : Odette Annable cast as season 3 big bad Reign ''. Entertainment Weekly. Retrieved May 31, 2017. Jump up ^ Mitovich, Matt Webb ( 2017 - 10 - 09 ). `` Supergirl Boss Previews a ' Lot More ' Sister Scenes, Reign 's Rise, Lena 's Foe and One ' Raw, Amazing ' Episode ''. TVLine. Retrieved 2017 - 10 - 10. Jump up ^ Andreeva, Nellie ( September 4, 2014 ). `` Supergirl Takes Flight With TV Series From Greg Berlanti & Ali Adler ''. Deadline.com. Retrieved September 5, 2014. Jump up ^ Sunu, Steven ( September 9, 2014 ). `` Berlanti Confirms `` Supergirl '' TV Series Reports ``. Comic Book Resources. Retrieved September 9, 2014. ^ Jump up to : Hibberd, James ( January 12, 2015 ). `` CBS reveals ' Supergirl ' details : The costume is ' awesome ' ''. Entertainment Weekly. Retrieved January 22, 2015. Jump up ^ Goldberg, Lesley ( January 22, 2015 ). `` ' Glee, ' ' Whiplash ' Breakout Set as CBS ' ' Supergirl ' ''. The Hollywood Reporter. Retrieved July 3, 2015. Jump up ^ Abrams, Natalie ( July 2, 2015 ). `` Supergirl : Melissa Benoist on landing the role of a lifetime, and empowering women ''. Entertainment Weekly. Retrieved July 3, 2015. Jump up ^ Roy, Jessica ( July 12, 2015 ). `` Peter Facinelli Has Joined Supergirl -- But Will He Be Good or Evil ? ''. TV Guide. Retrieved July 15, 2015. Jump up ^ Kenneally, Tim ( December 1, 2014 ). `` ' Vampire Diaries ' Star Claire Holt in Contention for CBS 's ' Supergirl ' Series ( Exclusive ) ''. The Wrap. Retrieved December 1, 2014. Jump up ^ Roffman, Marisa ( December 8, 2014 ). `` ' The Originals ' Boss on the Fallout From the Rebekah Twist ''. The Hollywood Reporter. Retrieved December 8, 2014. Jump up ^ Payne, Will ( December 31, 2014 ). `` Hollyoaks star Gemma Atkinson set to be Supergirl in new TV series ''. The Sun. Retrieved December 31, 2014. Jump up ^ Neely, Blake ( @ cowonthewall ) ( March 21, 2015 ). `` @ darthtardis : @ MoreTVMag @ cowonthewall @ PSPatel Will the awesome Blake Neely be scoring the new spinoff or Supergirl ? ; @ cowonthewall : @ darthtardis @ MoreTVMag @ PSPatel yes to both ! Woohoo ! ! '' ( Tweet ). Retrieved March 22, 2015 -- via Twitter. Jump up ^ Goldberg, Lesley ( May 6, 2015 ). `` ' Supergirl ' Ordered to Series at CBS ''. The Hollywood Reporter. Retrieved May 7, 2015. Jump up ^ Andreeva, Nellie ( May 13, 2015 ). `` CBS Fall 2015 Schedule : ' Supergirl ' Opens Monday, ' Life In Pieces ' Follows ' Big Bang ' ''. Deadline.com. Retrieved May 13, 2015. Jump up ^ Fitzpatrick, Kevin ( June 9, 2015 ). `` CBS ' Supergirl ' Sets October Premiere, Plus More Fall Schedules ''. Screencrush. Retrieved June 9, 2015. Jump up ^ Goldman, Eric ( June 10, 2015 ). `` Comic - Con : WBTV Bringing 18 Shows, Including Arrow, The Flash and Supergirl ''. IGN. Retrieved June 11, 2015. Jump up ^ Abrams, Natalie ( July 8, 2015 ). `` ' Supergirl ' : How often will we see Superman ? ''. Entertainment Weekly. Retrieved July 11, 2015. Jump up ^ Wagmeister, Elizabeth ( November 30, 2015 ). `` ' Supergirl ' Lands Full First Season Pickup at CBS ''. Variety. Penske Media Corporation. Retrieved November 30, 2015. ^ Jump up to : Andreeva, Nellie ( May 12, 2016 ). `` ' Supergirl ' Moves To The CW, Renewed For Season 2 ''. Deadline.com. Retrieved May 12, 2016. Jump up ^ Harewood, David ( May 12, 2016 ). `` 22 episode order. Vancouver. CW. Details to come. # season2 # off2bed # Johannesburg ''. Twitter. Retrieved May 12, 2016. Jump up ^ Ge, Linda ( May 19, 2016 ). `` ' Supergirl ' Could Lose Calista Flockhart as Series Regular in Season 2 ''. The Wrap. Retrieved May 19, 2016. Jump up ^ Hibberd, James ( May 19, 2016 ). `` The CW boss finally says it : Supergirl should have been ours ''. Entertainment Weekly. Retrieved May 19, 2016. Jump up ^ Andreeva, Nellie ( August 1, 2016 ). `` ' Supergirl ' : Calista Flockhart To Recur In Season 2 On CW As Filming Moves North ''. Deadline. Retrieved August 1, 2016. Jump up ^ Andreeva, Nellie ( June 16, 2017 ). `` ' Supergirl ' : Jessica Queller & Robert Rovner Named Co-Showrunners On the CW Series ''. Deadline.com. Retrieved June 17, 2017. Jump up ^ Silas Lesnick ( March 6, 2015 ). `` It 's a Bird ! It 's a Plane ! It 's the first Supergirl images ! ''. SuperHeroHype. Retrieved March 6, 2015. Jump up ^ Wagmeister, Elizabeth ( March 6, 2015 ). `` ' Supergirl ' Costume Revealed : First Photos of Melissa Benoist as CBS Superhero ''. Variety. Retrieved March 6, 2015. Jump up ^ Epsiten, Ian ( October 22, 2015 ). `` How TV 's Supergirl Got Her New Look ''. vulture.com. Retrieved October 24, 2015. Jump up ^ Abrams, Natalie ( March 6, 2015 ). `` Supergirl debuts new costume -- what 's different ? ''. Entertainment Weekly. Retrieved March 6, 2015. Jump up ^ Andrew Dyce ( March 6, 2015 ). `` ' Supergirl 's Full Costume Revealed in First Official Images ''. ScreenRant. Retrieved March 6, 2015. Jump up ^ Michael Cavna ( March 6, 2015 ). `` First look : Melissa Benoist 's Supergirl costume revealed by CBS ''. The Washington Post. Retrieved March 6, 2015. Jump up ^ `` All The Greatest Superhero Costumes On TV -- Ranked From Super Tragic To Super Epic ! : Supergirl on Supergirl ''. E ! Online. March 6, 2015. Archived from the original on March 7, 2015. Retrieved March 6, 2015. Jump up ^ Sadie Gennis ( March 6, 2015 ). `` Get a First Look at CBS ' Supergirl Costume ''. TV Guide. Retrieved March 6, 2015. Jump up ^ @ Glen__Winter ( February 26, 2015 ). `` Incredibly proud and humbled to be directing the # supergirl pilot ! Grateful to @ GBerlanti @ geoffjohns @ AJKreisberg @ AliAdler '' ( Tweet ) -- via Twitter. Jump up ^ Melrose, Kevin ( March 4, 2015 ). `` '' Supergirl '' Pilot Starts Production ``. Comic Book Resources. Retrieved March 4, 2015. Jump up ^ Jayson, Jay ( March 29, 2015 ). `` CBS ' Supergirl Has Wrapped Filming ''. Comic Book.com. Retrieved March 30, 2015. Jump up ^ Phegley, Kiel ( March 16, 2015 ). `` CBS ' `` Supergirl '' Includes Old School DC TV Nod On Set ``. Comic Book Resource. Jump up ^ Collins, Scott ( May 4, 2016 ). `` ' Supergirl ' Renewal Drama : Talks Center on Possible Jump to CW, Budget Cuts ( Exclusive ) ''. TheWrap. Retrieved May 5, 2016. Jump up ^ `` Supergirl Season 3 Filming Begins This Week KryptonSite ''. www.kryptonsite.com. Retrieved July 26, 2017. Jump up ^ `` Production Dates - Various Shows * Updated 14th July 2017 * ''. SpoilerTV. July 14, 2017. Retrieved July 26, 2017. Jump up ^ `` Watch Supergirl TV Series Online ''. Global TV. Retrieved September 11, 2015. Jump up ^ Furdyk, Brent ( August 29, 2016 ). `` Showcase Unveils Blockbuster Fall Lineup : ' Supergirl ', ' Travelers ', ' Incorporated ' And More ''. ET Canada. Retrieved November 22, 2016. Jump up ^ Munn, Patrick ( October 14, 2015 ). `` Sky1 Sets UK Premiere Date For ' Supergirl ' ''. TVWise. Retrieved October 19, 2015. Jump up ^ Knox, David ( November 12, 2015 ). `` Airdate : DC 's Legends of Tomorrow ''. TV Tonight. Retrieved November 12, 2015. Jump up ^ `` Supergirl : Season 1 ( 2015 ) ''. Rotten Tomatoes. Retrieved October 29, 2017. Jump up ^ `` Supergirl : Season 1 ''. Metacritic. Retrieved October 29, 2017. Jump up ^ `` Supergirl : Season 2 ( 2016 ) ''. Rotten Tomatoes. Retrieved October 29, 2017. Jump up ^ `` Supergirl : Season 2 ''. Metacritic. Retrieved October 29, 2017. Jump up ^ `` Supergirl : Season 3 ( 2017 ) ''. Rotten Tomatoes. Retrieved October 29, 2017. Jump up ^ `` Supergirl : Season 1 ( 2015 ) ''. Rotten Tomatoes. Retrieved October 27, 2015. Jump up ^ `` Supergirl : Season 1 ''. Metacritic. Retrieved October 20, 2015. Jump up ^ Wheatley, Cliff ( October 20, 2015 ). `` SUPERGIRL : `` PILOT '' REVIEW ``. IGN. Retrieved October 20, 2015. Jump up ^ `` Supergirl : Season 2 ( 2016 ) ''. Rotten Tomatoes. Retrieved October 14, 2016. Jump up ^ `` Supergirl ( 2015 ) : Season 2 ''. Metacritic. Retrieved October 14, 2016. Jump up ^ https://www.rottentomatoes.com/tv/supergirl/s03/ Jump up ^ Porter, Rick ( November 3, 2015 ). `` Monday final ratings : ' Supergirl ' and ' Blindspot ' adjust down, ' Big Bang Theory ' adjusts up ''. TV by the Numbers. Tribune Digital Ventures. Retrieved November 4, 2015. Jump up ^ Porter, Rick ( April 19, 2016 ). `` Monday final ratings : ' Supergirl ' finale adjusts up, ' NCIS : LA ' adjusts down ''. TV by the Numbers. Retrieved April 19, 2016. Jump up ^ Porter, Rick ( October 11, 2016 ). `` ' Timeless, ' ' Conviction, ' ' DWTS, ' ' Lucifer ' adjust down, ' Big Bang ' adjusts up : Monday final ratings ''. TV by the Numbers. Retrieved October 11, 2016. Jump up ^ Porter, Rick ( May 23, 2017 ). `` ' The Voice ' adjusts up, ' Jane the Virgin ' adjusts down : Monday final ratings ''. TV by the Numbers. Retrieved May 23, 2017. Jump up ^ Porter, Rick ( October 10, 2017 ). `` ' Big Bang Theory ' and ' Good Doctor ' adjust up, other CBS shows and ' The Brave ' down : Monday final ratings ''. TV by the Numbers. Retrieved October 10, 2017. Jump up ^ Petski, Denise ( May 26, 2015 ). `` ' Supergirl ', ' Minority Report ' Among Critics ' Choice TV Awards ' Top New Series ''. Deadline Hollywood. Retrieved February 2, 2016. Jump up ^ Melrose, Kevin ( January 7, 2016 ). `` ' Furious 7 ', ' Supergirl ' Win People 's Choice Awards ''. Spinoff Online. Retrieved January 10, 2016. Jump up ^ McClendon, Lamarco ( May 11, 2016 ). `` ' Better Call Saul ', Melissa Benoist, Nichelle Nichols To Be Honored at Saturn Awards ''. Variety. Retrieved May 12, 2016. Jump up ^ Crist, Allison ( July 29, 2016 ). `` Teen Choice Awards : Complete List of Nominees ''. The Hollywood Reporter. Retrieved July 31, 2016. Jump up ^ Schwindt, Oriana ( January 31, 2017 ). `` ' Moonlight, ' Netflix 's ' The OA, ' ' Supergirl ' Snag GLAAD Media Awards Nominations ''. Variety. Retrieved March 3, 2017. Jump up ^ Levy, Dani ( February 2, 2017 ). `` 2017 Nickelodeon Kids Choice Awards Nominations -- Full List ''. Variety. Retrieved February 2, 2017. Jump up ^ McNary, Dave ( March 1, 2017 ). `` Saturn Awards Nominations 2017 : ' Rogue One, ' ' Walking Dead ' Lead ''. Variety. Retrieved March 1, 2017. Jump up ^ Swertlow, Meg ( June 20, 2017 ). `` Teen Choice Awards 2017 Nominations Announced : See the `` First Wave '' of Potential Winners ``. E ! Online. Retrieved June 20, 2017. Jump up ^ McNary, Dave ( March 15, 2018 ). `` ' Black Panther, ' ' Walking Dead ' Rule Saturn Awards Nominations ''. Variety. Archived from the original on March 15, 2018. Retrieved March 15, 2018. Jump up ^ `` Best of 2015 : Television Critic Top Ten Lists ''. Metacritic. December 8, 2015. Jump up ^ `` Best of 2016 : Television Critic Top Ten Lists ''. Metacritic. December 13, 2016. Jump up ^ Stack, Tim ; Brissey, Breia ( December 5, 2014 ). `` The Man Behind the Masks ''. Entertainment Weekly. Time Warner ( 1340 ) : 42 -- 46. access - date = requires url = ( help ) Jump up ^ CW Seed ( August 21, 2015 ). Vixen : Series Premiere Featurette : CW Seed. YouTube. Event occurs at 0 : 11. Retrieved August 22, 2015. Jump up ^ Cornet, Roth ( January 12, 2015 ). `` CBS President Nina Tassler Doubtful About a Supergirl / Flash / Arrow Crossover ''. IGN. Retrieved January 22, 2015. Jump up ^ Abram, Natalie ( August 10, 2015 ). `` CBS edges closer to ' Supergirl, ' ' Arrow, ' ' The Flash ' crossover ''. Entertainment Weekly. Retrieved August 11, 2015. Jump up ^ Andreeva, Nellie ( August 11, 2015 ). `` CW Boss Has ' Supergirl ' Regret, Talks Possible Crossover, ' Jane the Virgin ' Emmy Snub & ' Supernatural ' End Date ''. Deadline.com. Retrieved September 18, 2015. Jump up ^ Wagmeister, Elizabeth ( January 10, 2016 ). `` CW President Teases Female Superhero Show, Talks ' Supernatural ' Future and Stands By ' Crazy Ex-Girlfriend ' ''. Variety. Retrieved January 10, 2016. Jump up ^ Hibberd, James ( January 10, 2016 ). `` Supergirl evolving as Flash crossover deadline nears ''. Entertainment Weekly. Retrieved January 10, 2016. Jump up ^ Ge, Linda ( January 12, 2016 ). `` CBS President Teases ' Supergirl ' - ' The Flash ' Crossover ''. TheWrap. Retrieved January 12, 2016. Jump up ^ `` ( # SG118 ) `` Worlds Finest '' ``. The Futon Critic. Retrieved March 9, 2016. Jump up ^ Lincoln, Ross A. ( February 3, 2016 ). `` Crossover Confirmed : ' The Flash ' To Meet ' Supergirl ' In March Episode ''. Deadline.com. Retrieved February 3, 2016. Jump up ^ Couto, Anthony ( February 9, 2016 ). `` Surprising DC Superhero Makes Cameo On `` The Flash '' ``. Comic Book Resources. Retrieved February 9, 2016. Jump up ^ Day, Carla ( November 29, 2016 ). `` ' The Flash ' Recap : `` Invasion ! '' -- The Gang 's All Here ``. Collider.com. Retrieved November 30, 2016. ^ Jump up to : Abrams, Natalie ( October 18, 2016 ). `` Arrow boss teases 100th episode, crossover catalyst ''. Entertainment Weekly. Retrieved October 18, 2016. Jump up ^ Burlingame, Russ ( October 23, 2016 ). `` Marc Guggenheim Reveals the Title Of Arrow 's 100th Episode ''. ComicBook.com. Retrieved October 23, 2016. Jump up ^ Abrams, Natalie ( October 18, 2016 ). `` Arrow boss teases 100th episode, crossover catalyst ''. Entertainment Weekly. Jump up ^ Schwartz, Terri ( January 20, 2017 ). `` The Flash / Supergirl Crossover Episode Details Revealed ''. IGN. Retrieved January 20, 2017. Jump up ^ Bryant, Jacob ( November 29, 2016 ). `` Marc Guggenheim Teases Mega-Crossover, Celebrating ' Arrow 's ' 100th Episode ''. Variety. Retrieved December 6, 2016. Jump up ^ https://variety.com/2017/tv/news/arrow-flash-supergirl-legends-of-tomorrow-kevin-smith-paleyfest-1202011595/ Jump up ^ Mitovich, Matt Webb ( 2017 - 08 - 02 ). `` Arrow - verse 's Next 4 - Show Crossover Event Set for Two Nights in November ''. TVLine. Retrieved 2017 - 08 - 13. Jump up ^ Bryant, Jacob ( 2017 - 08 - 02 ). `` CW Announces Dates for ' Arrowverse ' Crossover Episodes ''. Variety. Retrieved 2017 - 08 - 13. Jump up ^ Yehl, Joshua ( December 15, 2015 ). `` DC SWOOPS IN WITH ADVENTURES OF SUPERGIRL DIGITAL COMIC ''. IGN. Retrieved December 15, 2015. Jump up ^ Lambert, David ( June 2, 2016 ). `` Supergirl - ' The Complete 1st Season ' Press Release for DVDs, Blu - rays ''. TV Shows on DVD. Retrieved August 24, 2016. Jump up ^ `` Supergirl -- Season 1 ( DVD ) ( 2016 ) ''. Amazon. Retrieved July 1, 2016. Jump up ^ `` Supergirl -- Season 1 ''. JBHiFi. Retrieved July 1, 2016. General references `` Shows A-Z -- Supergirl ''. The Futon Critic. Futon Media. Retrieved December 4, 2015. 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Question: when does the flash show up in supergirl
Answer: the eighteenth episode of the first season, "Worlds Finest"