The CW's TV adaptation of The Lost Boys has filled in the roles of the Frog Sisters. While the upcoming series seems like it will have a lot in common with the original 1987 movie, there will clearly be some key differences as well. One of the biggest changes comes from trading in the Frog Brothers for Frog Sisters, with the characters now named Liza and Cassie. It's now been confirmed that Liza will be played by Cheyenne Haynes, who has appeared in shows like Camping, Just Add Magic, and Shameless. Joining her as Cassie will be actress Haley Tju, who's done voice work for animated shows like The Loud House in addition to appearing on Stella and the Bulldogs.

In the original movie from director Joel Schumacher, the Frog Brothers consisted of siblings Edgar and Alan Frog, played by Corey Feldman and Jamison Newlander, respectively. The two meet Sam Emerson in the Santa Clara comic book shop, where they introduce themselves as vampire hunters. The pair has since become two of the most well-known vampire slayers in horror movie history, and it seems the Frog Sisters will play a very similar role in The CW's adaptation. Described as a pair of smart, cool, and lightly goth teenagers, the pair is working at the comic book store where they encounter Sam.

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Flesh and Bone actress Sarah Hay has also signed on to star as Mollie, a vampire who "travels in a small pack with her eternally 8-year-old son, Laddie, and a guardian, Hiram, who's there to make sure she doesn't get into too much trouble." While Mollie was not featured in the original movie, her son Laddie was, played by Chance Michael Corbitt. While Sam Emerson has yet to be cast, his brother Michael will be portrayed by Tyler Posey (Teen Wolf), taking over the role from Jason Patric. Kiele Sanchez (Kingdom) has also signed on to play their mother Lucy, who was originally played by Dianne Wiest. Kiefer Sutherland's David will now be played by Dakota Shapiro (Valley of the Boom), while Medalion Rahimi (Still Star-Crossed) will play Stella - a new take on Jami Gertz's Star from the original.

Catherine Hardwicke has been attached to direct the pilot episode of the series, which will be her first time working with vampires since helming the original Twilight movie in 2008. She'll be using a script by Heather Mitchell. Set in the California town of Santa Clara and featuring many of the same characters, the show seems to be faithful in many ways to the source material, while still offering many major differences. Changing the genders of the Frog Brothers is clearly the most obvious example as of now, and we'll probably find out more as production on the pilot commences.

Diehard fans of the original movie might be crying foul, as is the case anytime a beloved classic gets a new reboot. It's hard to say how many fans of the movie will be tuning into the CW show, but it still may find success in introducing the story to a new generation of fans. Ultimately, we'll just have to wait and see how the series turns out. This information comes to us from Deadline.