James Gunn Shares New BTS Photo Of Milly Alcock As ‘Supergirl’s Kara Zor-El ​on March 31, 2025 at 5:06 pm

James Gunn, co-head of DC Studios, released a second behind-the-scenes photo of Milly Alcock from Supergirl: Woman of Tomorrow, building anticipation for the film’s presentation at Warner Bros. Discovery’s CinemaCon panel tomorrow.

Alcock is pictured with the Supergirl: Woman of Tomorrow comic by Tom King, which Ana Nogueira adapted for the film. The story centers on Krem of the Yellow Hills, who kills an alien girl’s father, prompting her and Supergirl, accompanied by the noble Knolle, to embark on a pursuit for justice. 

Gunn shared with fans on social media on Monday, saying, “Today we celebrate #Supergirl and all her various incarnations. Can’t wait for you to see the latest version, portrayed by the indomitable @millyalcock, in June 2026.”

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While Alcock’s costume remains under wraps, more may be revealed at Warner Bros. Discovery’s panel tomorrow at Cinemacon 2026. 

The ensemble cast for Supergirl: Woman of Tomorrow is shaping up, with Jason Momoa cast as Lobo, Eve Ridley as Ruthye Mary Knolle, Matthias Schoenaerts as the villain Krem of the Yellow Hills, David Krumholtz as Zor-El, and Emily Beecham as Alura In-Ze.