New posters for Supergirl Season 5 tease the hidden sides of some of the CW show's most important characters going forward.The five posters, which were shared by the Warner Bros. TV Twitter, show J'onn J'onzz/Martian Manhunter (David Harewood), Lena Luthor (Katie McGrath), Brainiac-5 (Jesse Rath), Kelly Olsen (Azie Tesfai) and Eve Teschmacher (Andrea Brooks). The images themselves show more stoic versions of the characters overlaid with a hidden side in a different color.RELATED: Supergirl: Meaghan Rath Joining Series as Female Brainiac-5

Although these actors are returning from Season 4, Supergirl's next outing will see the addition of several new characters, including Meaghan Rath as a female Brainiac-5. Jon Cryer will reprise his role as Lex Luthor in some capacity, while longtime star Mehcad Brooks, who plays James Olsen, will be exiting the series. Additionally, Season 5 will see introduce several new series regulars, including Julie Gonzalo as Andrea Rojas/Acrata and Staz Nair as original character William Dey, a renowned reporter.

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Returning Sunday, October 9 at 9 p.m. ET/PT on The CW, Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen and Chyler Leigh as Alex Danvers.