Reports had come out last week that Alcock was in the running to play Supergirl for James Gunn’s new DCU, and Variety has confirmed that Alcock is now going to be making her superheroine debut in Superman: Legacy, then headlining in her own feature film with Supergirl: Woman of Tomorrow.

Besides Alcock, Disney Channel star Meg Donnelly had been considered for the part, with her having voiced Supergirl in animation. Though Alcock did get the live-action part, I don’t see why Donnelly can keep playing the voice of Supergirl moving forward.

We don’t know yet how Gunn and his team plan to tackle Supergirl down the line, but I do think that Alcock won the role because she looks significantly younger than Donnelly. What makes the dynamic between Clark and Kara interesting is that Kara is younger, but she knows more about Krypton than Clark does, having grown up there before it exploded.

For now, we’re just going to have to wait and see what everyone looks like in costume, but a lot of fans agree that Alcock is a solid pick for the character. Fingers crossed we get a first look before the year ends.

Watch out for Alcock when she makes her debut as Supergirl in Superman: Legacy which comes out July 11, 2025.

According to The Hollywood Reporter, the search has been narrowed down to two actresses: House of the Dragon’s Milly Alcock and Disney Channel star Meg Donnelly from the musical franchise Zombies.

The plan is to have Supergirl get introduced in Gunn’s Superman: Legacy next year, and eventually get her own movie Supergirl: Woman of Tomorrow. So far DC Studios has not made their decision yet, but it was said that there have been test screenings with Gunn and Safran present.

As far as fan support goes, Donnelly has been the top pick for fans, seeing that she has already voiced Supergirl in some animated projects including Legion of Superheroes and Justice League: Crisis on Infinite Earths.

That being said, Alcock has more of a recognition when it comes to the screen, seeing that she was in the critically-acclaimed House of the Dragon, and her casting is sure to bring in some fans from that audience.

It’s hard to really gauge what Gunn’s tone for the new DC is going to be, but it has been said that the Supergirl movie is going to embrace a more ‘punk rock’ feel. Personally, I’m more invested in Alcock landing a less conventional superhero role like Spider-Gwen or Gwenpool, so I’m fine if Donnelly gets the part since she does have that Disney Channel audience.

I guess we’ll just have to wait and see.

Watch out for Supergirl when she makes her debut in Superman: Legacy which comes out July 11, 2025.