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Flash Cast Member To Appear In The Superman & Lois Finale

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The Flash’s Tom Cavanagh is not finished appearing in the Arrowverse (or Arrowverse-adjacent) shows, as he revealed this weekend at the FAN EXPO Philadelphia event on May 4 that he will be playing a role in the Superman & Lois series finale.

In the panel, Cavanagh explained how he preferred directing premieres or finales and had long grown a trust with showrunner Todd Helbing that he could always deliver, dating back to The Flash’s 100th episode which he directed. Since the Superman & Lois Season 4 finale is being directed by Gregory Smith, Cavanagh wasn’t able to do the finale this year, but instead, Helbing suggested that he appears in front of the camera.

“The finale for ‘Superman & Lois’ was taken up already, and so I said, ‘Well, I’m happy to not do it,’ which is when Todd was like ‘Well, would you play a role?’ And so that’s coming up, for those of you that watch ‘Superman & Lois’ — something that I’m happy to have done,” Cavanagh explained at the panel.

The question now, of course, is who will Tom Cavanagh be playing? Harrison Wells or a variation of him? Eobard Thawne? Or, could it be someone entirely new… after all, Superman & Lois is not set in the same part of the multiverse. Or, he said “a role” – could it be something behind the scenes, and that to assume it’s an acting role could be a jump to conclusions. Either way, chances are good we won’t find out for sure until Superman & Lois Season 4 starts airing this Fall on The CW. For now, though, it might be fun to speculate. You can see video courtesy of DevsMastani on Twitter/X below.

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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There are 2 comments

  1. Levi Yoder

    May 6, 2024

    Chances are that Timeless Wells will be the one appearing because remember that evil Wells doesn’t exist anymore. The only Wells that exists is Timeless Wells.

  2. Vantheman77

    May 6, 2024

    I hope he plays Pariah from the Crisis.

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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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