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Supergirl actress Milly Alcock was told to “be more drunk” during her Superman cameo

DC Studios head James Gunn had one note for Milly Alcock during her Superman cameo – “be more drunk”

It’s a bird! It’s a plane! It’s... someone in need of a designated driver...?

On July 11, 2025 Superman officially hit theaters, and audiences were given their first look at Milly Alcock’s Supergirl during the film’s finale. Superman’s cousin returned to Earth to reclaim her dog, and she was a bit tipsy, much to the chagrin of Gary the Robot.

Milly Alcock, who had previously played Rhaenyra Targaryen on House of the Dragon, says that director and DC Studios co-president James Gunn had a simple directive for her during the cameo – be more drunk. “I think it was a bit self-guided. I think it was a bit like, ‘You’re drunk! Be more drunk! Stumble!’ It was kind of like that,” Milly Alcock said during a conversation with Josh Horowitz for the Happy Sad Confused podcast.

Remember the part where Krypto tackles her to the ground? That was done with a human standing in for Krypto, an experience which Alcock found amusing. “Pretend the dog is licking you, and there was like a 4-foot-11 actor there. These actors that play animals, and she was pretending to be a dog and barking at me,” Alcock remembered.

It would be another year before audiences got to meet the unintoxicated version of Kara in Craig Gillespie’s Supergirl, but everyone needs time to sober up. Besides, it was quite a first impression, and it’s hard to watch Alcock’s Supergirl cameo without smiling.

Superman is streaming on HBO Max now.


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Joshua Lapin-Bertone

Joshua Lapin-Bertone: Joshua is a pop culture writer specializing in comic book media. His work has appeared on the official DC Comics website, the DC Universe subscription service, HBO Max promotional videos, the Batman Universe fansite, and more. In between traveling around the country to cover various comic conventions, Joshua resides in Florida where he binges superhero television and reads obscure comics from yesteryear.

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