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Supergirl’s Carl Lumbly On The “Definitive” Martian Manhunter

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Actor Carl Lumbly had quite a super resume before landing on Supergirl as M’yrnn, father of David Harewood‘s J’onn. Decades before Black Lightning or Luke Cage received their own TV series, he starred as one of TV’s first African-American heroes in M.A.N.T.I.S.; a few years later, he began his long association with the Martian Manhunter as the voice of J’onn J’onzz on the Justice League animated show.

And now he’s playing his father!

There are some big moments coming for M’yrnn in the next two episodes of Supergirl, airing April 16 and 23, and at a recent Q&A, we asked Mr. Lumbly what it was like to return to the Martian Manhunter legacy.

“In the first place, it was such a joy to have the opportunity to come back as ‘my father’,” he told a group of press at The CW offices following a screening of next week’s episode.

He also didn’t skip a beat in complimenting his TV “son.”

“In the reality, David Harewood is, for me, the definitive J’Onn. If I could have imagined what I wanted to see when I was voicing it, it would be him,” Lumbly said.

“Our relationship as characters and our friendship as men, being collegial in this journey, is a joy.”

Supergirl airs Mondays at 8PM (ET) on The CW. Take a look at some photos from “In Search of Lost Time” here!

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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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