Leslie replaces Ruby Rose, who left the show in May after one season.
"I am extremely proud to be the first Black actress to play the iconic role of Batwoman on television," said Leslie.
"And as a bisexual woman, I am honored to join this groundbreaking show which has been such a trailblazer for the LGBTQ+ community."
Leslie previously starred in CBS' "God Friended Me". Her other credits include BET's "The Family Business" and the 2019 rom-com "Always a Bridesmaid".
"...'Ryan Wilder', is a female, mid-late 20's, any ethnicity and is about to become 'Batwoman'.
"She’s likable, messy, a little goofy and untamed. She's also nothing like 'Kate Kane', the woman who wore the 'batsuit' before her..."
"I have made the very difficult