The same movie with the same characters, cast and crew as I am Curious (Yellow), but with some different scenes and a different political slant. The political focus in Blue is personal relationships, religion, prisons and sex. Blue omits much of the class consciousness and non-violence interviews of the first version. Yellow and Blue are the colors of the Swedish flag.
| Actor | Role |
|---|---|
| MMaj HulténDoktor | Doktor |
 Vilgot SjömanVilgot Sjöman | Vilgot Sjöman |
 Lena NymanAnna Lena Lisabet Nyman / Lena | Anna Lena Lisabet Nyman / Lena |
 Börje AhlstedtBörje | Börje |
 Sonja LindgrenSonja Lindgren | Sonja Lindgren |
| BBertil WikströmBertil Wikström | Bertil Wikström |
 Gunnel BroströmNot listed | Not listed |
| HHans HellbergHasse | Hasse |
| BBim WarneHasse's Girlfriend | Hasse's Girlfriend |
 Peter LindgrenLena's Father | Lena's Father |
| GGudrun ÖstbyeLena's Mother | Lena's Mother |
| UUlla LyttkensLena's Friend | Lena's Friend |
| MMagnus NilssonNot listed | Not listed |
 Gun JönssonWoman | Woman |
| PPierre FränckelMan | Man |
| HHanne SandemoseWoman | Woman |
 Frej LindqvistNot listed | Not listed |
 Marie GöranzonMarie | Marie |
| HHelle SandemoseNot listed | Not listed |
| HHagge GeigertEntertainer | Entertainer |
 Bo HolmströmTV-reporter | TV-reporter |