 Jason RobardsAndrei Sakharov | Andrei Sakharov |
 Glenda JacksonYelena Bonner | Yelena Bonner |
 Nicol WilliamsonMalyarov | Malyarov |
 Frank FinlayKravtsov | Kravtsov |
 Michael BryantSyshchikov | Syshchikov |
 Paul FreemanPavel Leontiev | Pavel Leontiev |
 Anna MasseyKlavdia | Klavdia |
 Joe MeliaSergej Kovalov | Sergej Kovalov |
 Lee MontagueSlavsky | Slavsky |
 Jim NortonRoy Medvedev | Roy Medvedev |
 Valentine PelkaEfrem Sakharov | Efrem Sakharov |
 Catherine HallTanya Sakharov | Tanya Sakharov |
| JJohn McAndrewAlyosha Sakharov | Alyosha Sakharov |
 Debbie FarringtonLisa Sakharov | Lisa Sakharov |
| DDavid MidwinterMatvel Sakharov, age 10 | Matvel Sakharov, age 10 |
| CCraig DickersonMatvel Sakharov, age 5 | Matvel Sakharov, age 5 |
| TToni WarwickAnya Sakharov | Anya Sakharov |
 Eileen WayRuf Grigorievna | Ruf Grigorievna |
| DDenyse AlexanderDr. Lydia | Dr. Lydia |
 Marion BaileyLudmilla Kovalov | Ludmilla Kovalov |
 Anton LesserValery Chalidze | Valery Chalidze |
 Norman RodwayPsychiatrist | Psychiatrist |
 Elizabeth SpriggsNobel Presenter | Nobel Presenter |
| RRobert ShermanAmerican Reporter | American Reporter |
 Paola DionisottiPatient's Wife | Patient's Wife |
 Avril ElgarOVIR Administrator | OVIR Administrator |
 Tenniel EvansDean Fedorenko | Dean Fedorenko |
 Jean HeywoodSakharov's Secretary | Sakharov's Secretary |
 Alex McCrindleSiberia Trainman | Siberia Trainman |
| JJohn RoweNorwegian Diplomat | Norwegian Diplomat |