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Supergirl Season 3 Filming Begins This Week

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Filming for Supergirl’s third season begins this week in Vancouver.

Directing the series premiere is Jesse Warn who previously helmed the Season 1 episode “Red Faced.” The action begins on Thursday, July 6 and filming is expected to continue through to the end of April 2018 — April 28, to be exact, if Vancouver production charts are to be believed as accurate.

Season 3 of Supergirl will star Melissa Benoist as Kara Danvers/Supergirl, Chyler Leigh as Alex Danvers, Mechad Brooks as James Olsen, Jeremy Jordan as “Winn” Schott, Katie McGrath as Lena Luthor, and David Harewood as Hank  Henshaw. Floriana Lima is said to continue to recur as Maggie Sawyer although she is no longer a series regular; the fate of Chris Wood’s Mon-El may be a spoiler. Odette Annable has been cast as Season 3 villain Reign, who has no relation to the CW series of the same name.

Supergirl Season 3 premieres Monday, October 9 on The CW.

Get Supergirl updates from our @KryptonSite Twitter throughout the season!

About the author

About the author

Craig Byrne

Craig Byrne has been writing about Superman TV since 1995, when the "Lois & Clark Krypton Club" launched. He founded KryptonSite.com in February 2001, becoming the first fan site for The WB/CW television series Smallville. He also wrote the Official Companion books for Smallville seasons 4-7 as well as the Smallville Visual Guide.

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About KryptonSite

In a time before social media, Craig Byrne created KryptonSite as the ultimate fan destination for The WB/CW series Smallville which starred Tom Welling, Michael Rosenbaum, Kristin Kreuk, Erica Durance and more. In the decades since, KryptonSite has grown to cover newer Superman-related TV and movie projects while still always holding on to Smallville.

The web’s first source for Smallville news, continuing to cover Supergirl, Superman & Lois, the new Superman films and more!

Copyright © 2026 Craig Byrne & KryptonSite and the respective original authors of posts. Smallville, Kryptonite and other Superman-related items are the property of DC Comics. No infringement is intended.

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