The third and final season of Shadowhunters: The Mortal Instruments was officially announced on April 21, 2017.[1][2] It premiered on March 20, 2018 and consists of 22 episodes. Following the show's cancellation, the season's mid-season break was extended and ran for nine months, and the season concluded on May 6, 2019.



While the Shadowhunters deal with changes in their personal lives and Clary and Jace keep dark secrets, a serious threat to the Shadowhunters emerges in the form of Lilith, a powerful demon building an army of disciples on a quest to resurrect her "precious boy" Jonathan.

3B (Shadowhunters: The Final Hunt):

The Shadowhunters face a new level of evil that they can't even imagine with the return of Jonathan Morgenstern.

Cast and characters

Main characters:

Recurring characters:

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Title Written by Directed by Airdate Episode
On Infernal Ground Todd Slavkin & Darren Swimmer Matt Hastings March 20, 2018 3x01 34
TMI301promo Meeting01 Secrets abound as the Shadowhunters and Downworlders try to get back to normal after Valentine's death. Alec pushes Jace to come clean about whatever Jace and Clary are hiding. Meanwhile, Lilith sets a plan in motion in New York City as Simon spends time in the Seelie Court.
The Powers That Be Peter Binswanger Peter DeLuise March 27, 2018 3x02 35
TMI302promo Magnus & Lorenzo 01 The warlocks' magic is becoming corrupted by a demonic presence while Izzy and Luke try to track down more information on the recent series of possessions.
What Lies Beneath Alex Schemmer Amanda Row April 3, 2018 3x03 36
TMI303promo Malec & Maryse 03 The Shadowhunters try to track down the new imposing threat, while Jace has a suspicion that Jonathan is back and behind the mundane attacks. Simon tries to figure out what the Seelie Queen did to him during his time in the glade. Alec decides to host a Lightwood family dinner at Magnus' house after a surprising visit from Maryse.
Thy Soul Instructed Jamie Gorenberg Emile Levisetti April 10, 2018 3x04 37
TMI304promo Jordan & Simon 03 Jace's concerns grow about his mental state and turns to Luke for information on his family's past. Clary and Izzy go after a rogue vampire and Simon hunts for a new apartment.
Stronger Than Heaven Brian Millikin Geoff Shotz April 17, 2018 3x05 38
TMI305promo Jace & Simon 03 Someone is out to get Simon and Jace is on the hunt to find out who it is. Meanwhile, Clary turns to Luke to find a way to help Jace. Alec worries about the future of his relationship after learning more about Magnus' romantic past.
A Window Into an Empty Room Aisha Porter-Christie Alexis O. Korycinski April 24, 2018 3x06 39
TMI306promo Jace & Lilith 02 Clary teams up with Magnus to investigate a recent demon attack. Simon is stunned with he's visited by someone he never thought he'd see again, and who now won't seem to leave. Meanwhile, Izzy worries about dinner with her family and a special guest and Luke reaches out to Maryse.
Salt in the Wound Celeste Vasquez Joshua Butler May 1, 2018 3x07 40
TMI307promo Meeting01 With the Owl's identity revealed, Alec, Isabelle, and Clary head to Alicante to try and find a way to stop him. Luke and Simon team up to track Lilith's latest possible victim. Maia reflects on her past.
A Heart of Darkness Jamie Gorenberg Ari Sandel May 8, 2018 3x08 41
TMI308promo Clary trial 01 Magnus, Alec and Isabelle try to reach Jace inside The Owl, but even as powerful as Magnus is, can he help the Lightwoods retrieve their brother from his demon prison? Maia and Jordan join Simon on the hunt for Lilith, while Luke tries to find a way to get to Clary.
Familia Ante Omnia Taylor Mallory Matt Hastings May 15, 2018 3x09 42
TMI309promo Jace & Lilith 01 Clary faces down an old foe in an attempt to find answers about Lilith's plan. Alec and Magnus turn to Lorenzo Rey for help, while Lilith finds a new ally. Luke must choose between his pack and his family, as Simon is forced to deal with his past.
Erchomai Bryan Q. Miller Jeffrey Hunt May 15, 2018 3x10 43
TMI310promo Magnus & Asmodeus14 The team scrambles to find a way to put a stop to Lilith's plan coming to fruition. But going up against their biggest opponent yet, their odds are not looking good. Meanwhile, Simon makes a heartbreaking choice with Isabelle's help and Magnus reconnects with a powerful person from his past.
Lost Souls Todd Slavkin & Darren Swimmer Matt Hastings Feb. 25, 2019 3x11 44
TMI311promo Jace & Luke 01 In the emotional midseason premiere, everyone is dealing with the loss of Clary and are trying to move on best they can. Unbeknownst to them, the Shadowhunters face a new level of evil that they can't even imagine with the arrival of Jonathan Morgenstern.
Original Sin Alex Schemmer Matt Hastings March 4, 2019 3x12 45
TMI312promo Clace03 Simon is determined to get rid of the Mark of Cain and, with Isabelle’s help, tries to track down New York’s oldest vampire to get more information on the mark. Now in Paris, Clary desperately tries to find an escape from her current situation. Meanwhile, with his new sense of mortality, Magnus tries to live life to the very fullest.
Beati Bellicosi Brian Millikin Mike Rohl March 11, 2019 3x13 46
TMI313promo Maia01 Jordan and the Praetor try to track down Heidi, while the Shadowhunters try to locate Jonathan. Meanwhile, Luke looks to Maryse for help and Isabelle gets a possible lead on information on what is really going on in the Clave prisons.
A Kiss From a Rose Zoe Broad Salli Richardson-Whitfield March 18, 2019 3x14 47
TMI314promo Magnus & Lorenzo 02 Continuing to track down information on the rumors about misconduct at The Clave's Downworlder prison, Isabelle asks Alec for help. Meanwhile, Magnus succumbs to asking Lorenzo for a favor and Jace takes Clary on a special date.
To the Night Children Peter Binswanger Siluck Saysanasy March 25, 2019 3x15 48
TMI315promo Heidi & Lightwoods 01 As the saying goes, "rules are made to be broken." But what if the rules are there for a reason? Several members of the team must examine the reasoning behind certain rules after consequences to questionable actions come to light. Whether the rules were broken because of love, loyalty or revenge, does the end justify the means?
Stay With Me Aisha Porter-Christie Amanda Row April 1, 2019 3x16 49
TMI316promo Malec01 Clary and Jace come up with a risky plan to get rid of her twinning rune, which may bring an old enemy back into the fray. Meanwhile, Alec is worried about Magnus.
Heavenly Fire Celeste Vasquez Shannon Kohli April 8, 2019 3x17 50
TMI317 Jonathan & Clary 01 Simon and Izzy team up on a secret mission to figure out what the Clave is hiding. Meanwhile, Clary is conflicted about Jonathan as the Shadowhunters try to get answers.
The Beast Within Taylor Mallory Joshua Butler April 15, 2019 3x18 51
TMI318promo Jonathan & Clary 02 A demon outbreak in New York City on Halloween becomes a top priority at the Institute, but as the Shadowhunters hunt the demons, Jace becomes more worried about Clary. Meanwhile, Alec has to juggle the outbreak with his deep concern about Magnus' depression.
Aku Cinta Kamu Jamie Gorenberg Siluck Saysanasy April 22, 2019 3x19 52
TMI319promo Team Evil 02 To try and save Clary from Jonathan, Jace goes undercover. Back at the Institute, Isabelle, Simon and Luke race to find a way to finally destroy Clary's bond with Jonathan. With time running out, can Isabelle create the solution before Jace's cover is blown?
City of Glass Bryan Q. Miller Matt Hastings April 29, 2019 3x20 53
TMI320promo Clary & Jonathan 01 Alec, Jace and Isabelle make a plan to finally get Clary back and stop Jonathan—much to Luke's and Simon's chagrin. Meanwhile, an emotionally raw Magnus struggles to deal with his father's reappearance and Maia must make a tough decision that could affect the rest of her life.
Alliance Bryan Q. Miller; Jamie Gorenberg
and Peter Binswanger
Todd Slavkin May 6, 2019 3x21 54
TMI321promo Magnus01 Clary comes up with a plan that will bring Shadowhunters and Downworlders together, as Alec struggles for a way to help Magnus.
All Good Things... Todd Slavkin & Darren Swimmer Todd Slavkin May 6, 2019 3x22 55
TMI322promo Clizzy03 Jonathan begins his reign of vengeful terror as the Shadowhunters try to find a way to stop him. With only one hope, Clary must make a sacrifice that could have long-lasting implications for all. Meanwhile, wedding bells are in the air for one special couple.



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The renewal for the season was announced on April 21, 2017, during a live chat on Facebook with the cast.[1]

The writers began to officially meet to work on the season on May 30, 2017.[3][4] On July 20, 2017 at SDCC, it was announced that Alisha Wainwright was promoted to series regular as Maia Roberts.[5][6] On October 7, 2017 at NYCC, it was announced that Freeform officially ordered the additional 10 episodes (3B) to air in the summer of 2018.[7] The original premiere date that was announced was the 3rd of April,[8] before it was announced in December that the premiere had been moved to the 20th of March,[9] two weeks earlier than the original plan. Freeform's press release for its May 2018 lineup announced that the first half of the season (3A) would end with a two-hour mid-season finale on May 15, 2018.[10]

Principal photography began on August 21, 2017,[11][12][13][14] took a break on December 6, 2017,[15][16] resumed on January 22, 2018,[17][18] and ran until May 2, 2018.[19][20] Additional filming took place afterwards in Paris.[21][22][23]

On June 4, 2018, it was announced that Shadowhunters was cancelled, in part due to Constantin Film losing its deal with Netflix,[24][25] and that 3B would return in spring 2019. An additional two episodes, to air as a two-hour series finale, was ordered in order to give closure to the storyline.[26] It was announced on the 3rd of November that 3B would return on February 25, 2019.[27]

See also


  1. 1.0 1.1 Live video chat announcementShadowhunters on Facebook
  2. ‘Shadowhunters’ Renewed For Season 3 By Freeform | Deadline
  3. "#shadowhunters Season 3 writers room now in session!" Darren Swimmer on Twitter
  4. "Day 1!" Zoe Broad on Twitter
  5. "‘Shadowhunters’: Alisha Wainwright Upped To Regular For Season 3 – Comic-Con" - Deadline
  6. "@WainwrightAE is a series regular in Season 3! 🙌 #ShadowhuntersAtSDCC" Shadowhunters on Twitter
  7. Freeform Orders 10 More Episodes Of ‘Shadowhunters’ | Deadline
  8. Shadowhunters on Twitter: #Shadowhunters returns Tuesday, April 3 at 8/7c
  9. New premiere date reveal | TVLine
  10. Freeform May 2018 lineup press release
  11. In Production list at OMDC
  12. "Once more unto the breach, dear friends, once more; #ShadowhuntersSeason3" John Rakich on Twitter
  13. "Round 3, Angels... Are you ready? #ShadowhuntersSeason3" Katherine McNamara on Twitter
  14. "Back in the saddle again. #shadowhuntersseason3" Matt Hastings on Twitter
  15. "That's a wrap for your girl Fray on #ShadowhuntersSeason3 A!" Katherine McNamara on Twitter
  16. "On the wrap of production for Season 3A," Darren Swimmer on Twitter
  17. "Production on 3B begins Jan 22." Todd Slavkin on Twitter
  18. "Season 3B has officially begun!" Matt Hastings on Twitter
  19. "Late night musings after wrapping #ShadowhuntersSeason3 yesterday." Katherine McNamara on Twitter
  20. "Tonight marks the completion of principal photography of #Shadowhunters Season 3." Swimmer on Twitter
  21. "Missing our cast as they are shooting in romantic Paris this week." Kathleen Jenkins on Twitter
  22. [1][2][3][4] [5] — Photos of filming taken by a fan | VK
  23. Katherine McNamara's Favorite Relationship on 'Shadowhunters' Isn't The One You Think It Is | Just Jared Jr.
  24. Sources say producer Constantin Film lost its output deal with Netflix, Hollywood Reporter
  25. ‘Shadowhunters’ Cancellation Was “Purely Economic,” Freeform Exec Says | Deadline
  26. ‘Shadowhunters’ To End After 3 Seasons, Freeform Orders 2-Hour Finale To Wrap Series In 2019 | Deadline
  27. Shadowhunters Return Date Revealed | TVLine
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