| Rami Malek | Elliot Alderson |
| Carly Chaikin | Darlene |
| Portia Doubleday | Angela Moss |
| Michael Cristofer | Phillip Price
(credit only) |
| Martin Wallström | Tyrell Wellick
(credit only) |
| Grace Gummer | Dominique DiPierro
(credit only) |
| BD Wong | Whiterose
(credit only) |
| Bobby Cannavale | Irving
(voice) |
| Christian Slater | Mr. Robot |
| Erik Jensen | Frank Cody |
| Ramy Youssef | Samar Swailem |
| Richard Lyntton | Business Man |
| Annika Pergament | NY1 News Correspondent |
| Kathryn Danielle | Bobbi |
| Christine M. Campbell | Janet |
| Andy Kelso | Stairwell Man |
| Derek Cox-Berg | Terrified E-Corp Employee |
| Patricia Hodges | Edie Hughes |
| Julian Gavilanes | Fred |
| Doug Trapp | Executive |
| Zack Abramowitz | E-Corp Security Guard |
| Anthony Vaughn Merchant | Protest Leader |
| Matt Golden | Producer |
| Laurie Segall | Laurie Segall |
| David Shumbris | Cop |
| Victor Paguia | Rioter |
| Shayna Blass | Lydia |
| Tom Place | Rioter #2 |
| Stephen Lin | Hamburger Man |
| Amanda Anthony | Passerby
(uncredited) |
| Rick Barone | Police Officer
(uncredited) |
| Scott Burik | Driver
(uncredited) |
| Ray Crisara | Head of Security
(uncredited) |
| Brian Donahue | E-Corp Lobby Security #1
(uncredited) |
| Lynn Marocola | Police Officer
(uncredited) |
| Sharla McBride | News Reporter
(uncredited) |
| And Palladino | Protestor
(uncredited) |
| Christopher Parker | E-Corp Security Guard
(uncredited) |
| Eric Santamaria | Protestor
(uncredited) |
| Alina Seddon | Protester
(uncredited) |