 Edmond O'BrienWinston Smith of the Outer Party | Winston Smith of the Outer Party |
 Jan SterlingJulia of the Outer Party | Julia of the Outer Party |
 Michael RedgraveO'Connor of the Inner Party | O'Connor of the Inner Party |
 David KossoffCharrington the Junk Shop Owner | Charrington the Junk Shop Owner |
 Mervyn JohnsJones | Jones |
 Donald PleasenceR. Parsons | R. Parsons |
| CCarol WolveridgeSelina Parsons | Selina Parsons |
 Ernest ClarkOuter Party Announcer | Outer Party Announcer |
 Patrick AllenInner Party Official | Inner Party Official |
 Ronan O'CaseyRutherford | Rutherford |
| BBartlett MullinsSyme | Syme |
 Michael RipperOuter Party Orator | Outer Party Orator |
 Ewen SolonOuter Party Orator | Outer Party Orator |
 Kenneth GriffithPrisoner | Prisoner |
 Walter GotellGuard (uncredited) | Guard (uncredited) |
 Patrick TroughtonMan on Telescreen (uncredited) | Man on Telescreen (uncredited) |
 John VernonBig Brother (uncredited) | Big Brother (uncredited) |
 Barbara KeoghSpecial Woman (uncredited) | Special Woman (uncredited) |
| BBarbara CavanWoman (voice) (uncredited) | Woman (voice) (uncredited) |
 Anthony JacobsTelescreen (voice) (uncredited) | Telescreen (voice) (uncredited) |
| BBernard RebelKalador (uncredited) | Kalador (uncredited) |
