When billionaire playboy Oliver Queen returns home to Starling City, he starts wearing a mask and going after criminals. As Oliver takes on tougher enemies, he also gains allies. And as he struggles with his own personal demons, Oliver slowly discovers what it's like to be the Green Arrow.

Cast: Stephen Amell, Katie Cassidy, Colin Donnell, David Ramsey, Willa Holland, Susanna Thompson, Paul Blackthorne, Emily Bett Rickards, Colton Haynes, Manu Bennett, John Barrowman

Seasons: 1, 2, 3, 4, 5

Young detective James Gordon tries to solve Gotham City's high-profile crime: the murder of Thomas and Martha Wayne. With this case in his hands, the detective eventually strikes a friendship with the young and helpless Bruce Wayne. Together with veteran detective Harvey Bullock, James also comes across Gotham's gangsters who want nothing but to wreak havoc on the city.

Cast: Ben McKenzie, Donal Logue, David Mazouz, Camren Bicondova, Erin Richards, Zabryna Guevara, Sean Pertwee, John Doman, Jada Pinkett Smith, Robin Lord Taylor, Cory Michael Smith, Victoria Cartagena, Andrew Stewart-Jones, Clare Foley

Seasons: 1, 2

Barry Allen is a socially awkward but brilliant crime scene investigator at the Central Police City Department. When the launch of an advanced scientific machine goes awry, Barry finds himself in a long coma. Upon waking up, he discovers he can move at superhuman speed, and Barry is bent on keeping his city safe from other superhuman criminals with the help of trusted friends.

Cast: Grant Gustin, Candice Patton, Danielle Panabaker, Rick Cosnett, Carlos Valdes, Tom Cavanagh, Jesse L. Martin, Keiynan Lonsdale

Seasons: 1, 2

The series follows Superman's cousin Kara Zor- El as a 24-year-old assistant to Cat Grant, the founder of media conglomerate CatCo Worldwide Media. As her secret powers are revealed, Kara exposes herself to villains both human and alien. She must learn how to use her superpowers to keep Earth—and her loved ones—safe as she tries to lead a "normal" life.

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Cast: Melissa Benoist, Mehcad Brooks, Chyler Leigh, Jeremy Jordan, David Harewood, Calista Flockhart

Seasons: 1