Rose is set to make her first appearance as Kane in upcoming Arrow-verse crossover event "Elseworlds", which will begin later in the current Season 7 of Arrow on 9 December, and continue through The Flash and Supergirl.
The costume, seen here, was designed by Oscar winning designer Colleen Atwood, and is pretty much ripped from the page.
Rose will make her debut as the popular Gotham City hero in this year's three-night Arrowverse crossover "Elseworlds", which will include Arrow, The Flash, and Supergirl.
The "Orange Is the New Black" alum is all suited up in the first look at the Gotham City superhero, aka Kate Kane. The character then went on to acclaimed runs in Detective Comics and her own self-titled series which was published by DC.
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On Tuesday, Amell took to Twitter to say that the crossover will begin with a not-so-nutritious breakfast for the Green Arrow.
It feels like only yesterday that The CW teased that Batwoman would be joining their annual Arrowverse crossover and that, depending on the reception, they were also developing a series based around the character.
Rose has said that when she got the role, she "kept spontaneously crying" because she was so thrilled to play Batwoman. The character of Kate Kane is a lesbian, and some Twitterers didn't know that Rose was too. "Critics also accused Rose of not being a lesbian since she also refers to herself as gender-fluid". The three-episode crossover will air December 9, 10 and 11 on The CW. "I came out at 12?" she tweeted before her exit.