Leslie is about to play a whole new version of the Gotham City hero named Ryan Wilder, who is described as “likable, disorderly, slightly awkward and untamed”.
The actor’s previous credits include the romcom Always A Bridesmaid and the dramatic comedy God Friended Me.
It succeeds to Ruby Rose, who played the season Batwoman – Kate Kane.
Rose left the series in May, much to the surprise of fans, describing it as a “very difficult decision.”
On Instagram, she praised Leslie for taking over the role, saying she would be “incredible.”
The producers originally planned to redesign the role of Kane, but instead called for a cast for an entirely new character in June.
Leslie – who will be the first black person to play the superhero on a TV show or live film – said: “I am extremely proud to be the first black actress to play the iconic Batwoman role on television. .
“And as a bisexual woman, I am honored to join this revolutionary show, which has been a forerunner for the LGBTQ + community. ”
Batwoman has been hailed for being the first television superhero series whose central character is a member of the LGBT + community.
Rose has been openly gay since 2006, and her portrayal of Batwoman was the first openly gay superhero star on television.
The new character of Leslie is described as a former drug trafficker, who had previously spent years evading Gotham City police, according to a casting note seen by Deadline.
She now lives in a van with her factory.
The show’s creator Caroline Dries wrote a note to fans on Twitter explaining why Leslie will play a whole new character.
She said: “As a lesbian who has worked as a writer for fifteen years, I know the trope ‘Bury Your Gays’ well and have no interest in participating. ”
“Bury your gays” is a term used to describe high death rates LGBT + characters on TV – especially among LBT + women.
Some critics say that television writers show negative experiences of queer people more than positive, often to directly raise, cisgenre characters.
“We will never erase it,” said Dries of the character Rose.
“In fact, his disappearance will be one of the mysteries of season two.
“LGBTQ + justice is at the very heart of what Batwoman is and we have no intention of abandoning it. ”
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Leslie’s praise came from Batwoman actress Meagan Tandy, as well as British actor David Harewood, who stars in Supergirl, another DC Comics show.
Batwoman is broadcast in the UK on E4.