The DC Universe has never been short of strong opinions, but some carry more history behind them than others. Grant Morrison has spent decades moving through the comic book publisher’s stranger corners, shaping characters and stories that have become part of the modern DC canon.

Their latest Supergirl review brings that history back into the conversation. The celebrated DC writer has weighed in on the latest DCU adventure, finding one performance compelling while having considerably less patience for another.

In the latest edition of their Xanaduum newsletter, Grant Morrison offered a mixed assessment of Supergirl. While they praised Milly Alcock, they delivered a particularly severe verdict on Jason Momoa’s Lobo.

“I watched Supergirl, which wasn’t terrible but wasn’t especially great either," he wrote.

"All the best and most moving scenes involved Millie Alcock, and I thought she did a credible job. Jason Momoa, who I was actually looking forward to, was very disappointing as Lobo," the DC writers declared in his newsletter, calling it "one of the worst performances" he has ever witnessed, especially from Momoa.

Their criticism does not stop with Momoa, whom he thinks was perfect for Lobo. Morrison also took issue with the film’s second act, arguing that the story creates a problem involving Krypto that could have been solved much more simply through the effects of a yellow sun (via ScreenRant). They also dismissed Krem of the Yellow Hills as a dull antagonist.

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Morrison’s assessment carries particular weight because few DC writers have spent as much time reshaping the universe from the page outward.

Grant Morrison’s relationship with DC stretches back decades, beginning with acclaimed runs on Animal Man and Doom Patrol before extending to JLA, Batman, Action Comics, Final Crisis and The Green Lantern. DC itself credits Morrison with expanding and reinventing major corners of its universe, including the Green Lantern mythology.

That connection makes the timing particularly interesting. Morrison has already discussed HBO’s Lanterns, initially criticizing its approach before later acknowledging that the series had improved substantially. The show has meanwhile earned a 93% Tomatometer score from 76 critics on Rotten Tomatoes.

Morrison’s DC credentials therefore do not make their opinion definitive, but they do provide considerable comic-book context. And with Supergirl, their verdict is unusually clear: Milly Alcock impressed them, the story lost them, and Jason Momoa’s Lobo left them wondering what went wrong.

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Do you or do you not agree with Grant Morrison's Supergirl review? Let us know what you think in the comments.