Hackers have played heroes and villains in dozens of TV series. Here are some of the most unforgettable
Harold Finch/”Person of Interest” (CBS)
A reclusive tech billionaire played by Michael Emerson, Finch hijacks surveillance data to further his mysterious goals.
Felicity Smoak, “Arrow” (CW)
Emily Bett Rickards plays this adapted version of the DC Comics character, an IT whiz who becomes the girlfriend of the superhero Arrow, aka Oliver Queen.
Elliot Alderson/”Mr. Robot” (USA)
Maybe the quintessential TV hacker, Alderson (Rami Malek) is a depressive who’s recruited by the title character (Christian Slater) to join a hacktivist group.
Brody Nelson/”CSI: Cyber” (CBS)
A former criminal hacker, Nelson (Shad Moss) comes over to the law-enforcement side and eventually becomes an FBI agent.
Willow Rosenberg/”Buffy the Vampire Slayer” (The WB/UPN)
Buffy’s high-school buddy, the nerdy computer ace played by Alyson Hannigan, made TV history by having one of the first lesbian relationships in a primetime series.
Skye (aka Daisy Johnson)/”Marvel’s Agents of S.H.I.E.L.D.” (ABC)
Chloe Bennet plays this hacker with special powers, who was adapted liberally from the comic-book version of the character.
Christopher Pelant/”Bones” (Fox)
Andrew Leeds plays the role of a hacker-turned-serial-killer in this crime procedural.
Chloe O’Brian/”24″ (Fox)
As portrayed by Mary Lynn Rajskub, Chloe isn’t just a computer whiz, she’s a friend in need to bad-ass super-agent Jack Bauer (Kiefer Sutherland).
Cindy Mackenzie/”Veronica Mars” (The CW, UPN)
Tina Majorino plays a high-school computer genius who helps her crime-solving pal Veronica crack cases.
Chuck Bartowski/”Chuck” (NBC)
Zachary Levi played the title character in this comedy-drama, about a computer sales guy thrown into global espionage capers after top-secret data gets implanted in his brain.
Ringo Langly/”The X-Files”/”The Lone Gunmen” (Fox)
In this “X-Files” spin-off, hacker Ringo was one of three conspiracy theorists who helped agents solve paranormal mysteries.
Huck Finn/”Scandal”
Guillermo Diaz plays this former CIA operative who helps heroine Olivia Pope navigate the thickets of D.C.
Walter O’Brien/”Scorpion”
British actor Elyes Gabel plays this super-genius who leads a pack of misfits in defending the U.S. from cyber threats.