Jon Cryer as Supergirl's Lex Luthor Revealed in Character Poster

The official Supergirl Twitter account has released a new character poster revealing Emmy winner Jon Cryer (Two and a Half Men) as Lex Luthor! You can check out the full poster now in the gallery below!

Superman’s biggest mortal enemy is scheduled to arrive at National City in this season’s fifteenth episode.

Supergirl stars Melissa Benoist as Kara Danvers/Supergirl, Mehcad Brooks as James Olsen, Chyler Leigh as Alex Danvers, Jeremy Jordan as Winslow ‘Winn’ Schott, Katie McGrath as Lena Luthor, Jess Rath as Brainiac 5, and David Harewood as Hank Henshaw/J’onn J’onnz. New to the cast for the fourth season is Sam Witwer as Agent Liberty, Rhona Mitra as Mercy Graves, and Bruce Boxleitner as Vice President Baker.

Based on the DC characters created by Jerry Siegel and Joe Shuster, the series is executive produced by Greg Berlanti, Sarah Schechter, Robert Rovner and Jessica Queller. Supergirl is produced by Berlanti Productions in association with Warner Bros. Television.

New episodes of Supergirl premiere Sunday at 8/7c on The CW. Stream free next day only on The CW App!

Supergirl Season 4

Supergirl Season 4
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SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0304b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0320b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0383b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0405b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0450b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_BTS_0590b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and Nicole Maines as Nia Nal -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0024b.jpg -- Pictured (L-R): Rhona Mitra as Mercy Graves and Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0101b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0153b.jpg -- Pictured: Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0217b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0231b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401b_0259b.jpg -- Pictured: Vincent Gale as Dr. Rohan Vose and David Harewood as Hank Henshaw/J'onn J'onzz -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0063b.jpg -- Pictured: Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0068b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl, Katie McGrath as Lena Luther and Mehcad Brooks as James Olsen/Guardian -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0118b.jpg -- Pictured (L-R): Mehcad Brooks as James Olsen/Guardian and Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.
SUPERGIRL

Supergirl -- "American Alien" -- Image Number: SPG401a_0251b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- ÃÂ© 2018 The CW Network, LLC. All Rights Reserved.