Season 3
No. of episodes 20
Premiere episode TBA
Finale episode TBA
Season chronology
Season Three
 1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
Season Two TBA →

The third season of Shadowhunters: The Mortal Instruments was officially announced on April 21, 2017. It will consist of 20 episodes and is set to premiere in 2018.[1][2]

Known information

SPOILER WARNING: Plot details follow. Caution is advised!

Cast and characters

Main characters:

Recurring characters:

more here...


Image Title Written by Directed by Original Airdate Episode
Shadowhunters: 3001 TBA Todd & Darren Matt Hastings 2018 3x01 34


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

According to an earlier report, production is tentatively set to run from August 14, 2017 to May 18, 2018.[8] Executive producer Matt Hastings confirmed that production is set to begin in August.[9] The writers began to officially meet to work on the season on May 30, 2017.[10][11]

On July 20, 2017 at the show's SDCC panel, it was announced that Alisha Wainwright was promoted to series regular as Maia Roberts.[12][13]

See also


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