Jonny Lee Miller as Dade Murphy / 'Crash Override' / 'Zero Cool'

Angelina Jolie as Kate Libby / 'Acid Burn'

Matthew Lillard as Emmanuelle Goldstein / 'Cereal Killer'

Jesse Bradford as Joey Pardella

Renoly Santiago as Ramon Sanchez / 'Phantom Phreak'

Laurence Mason as Paul Cook / 'Lord Nikon'

Fisher Stevens as Eugene Belford / 'The Plague' / Mr. Babbage

Lorraine Bracco as Margo

Wendell Pierce as S.S. Agent Richard Gill

Michael Gaston as S.S. Agent Bob

Marc Anthony as S.S. Agent Ray

Penn Jillette as Hal

Peter Y. Kim as Blade

Darren Lee as Razor

Alberta Watson as Lauren Murphy

Liza Walker as Laura

Bob Sessions as Duke Ellingson

Ethan Browne as Curtis

Blake Willett as S.S. Agent, Seattle

Max Ligosh as Young Dade Murphy / 'Zero Cool'

Felicity Huffman as Attorney

Paul Klementowicz as Michael Murphy

Richard Ziman as Judge

William DeMeo as Jock

Denise George as Denise

Johnny Myers as 1st Sysop Technician

Kevin Brewerton as 2nd Sysop Technician

Sam Douglas as English Teacher

Kal Weber as 1st V.P.

Jeff Harding as 2nd V.P.

Annemarie Lawless as Addict Vickie

Nancy Ticotin as Phreak's Mom

Naoko Mori as Tokyo Hacker

Dave Stewart as London Hacker

Ravil Isyanov as Russian Hacker

Olegar Fedoro as Russian Hacker

Jennifer Badger as 'Cyberspirits' and Skaters

Christo Morse as 'Cyberspirits' and Skaters

Bill Maul as Norm

Jeb Handwerger as Freshman on Roof

Mitchell McCormick as Freshman on Roof

Gary Klar as Mr. Simpson

Douglas W. Iles as Addict Hank

Michael Potts as Tow Truck Driver

Mike Cicchetti as Ellingson Guard

Mick O'Rourke as Phone Repairman

Roberta Gotti as Italian Hacker

Eric Loren as News Technician

Kristin Moreu as Flight Attendant

Ricco Ross as Second Reporter

Tony Sibbald as Jail Guard

Richard Purro as Talkshow Host

Enzo Junior as Da Vinci Virus

Yoshinori Yamamoto as 3rd V.P.

Ralph Winter as 4th V.P.

Kimbra Standish as Receptionist

Steven Angiolini as Rollerblader

Melissa Barkan as 'Cyberspirits' and Skaters

Donald J. Hewitt Jr. as 'Cyberspirits' and Skaters

Christopher Waller as 'Cyberspirits' and Skaters

Joseph Lloyd as 'Cyberspirits' and Skaters

C.J. Byrnes as Father (uncredited)