Directed by
| Oldrich Lipský | ||
Writing Credits
| Oldrich Lipský | ... | (story) |
| Oldrich Lipský | ... | (screenplay) |
| Milan Lasica | ... | (co-dialogue) |
| Vladimír Jiránek | ... | (writer) |
| Alexander Lukes | ... | (writer) |
| Július Satinský | ... | (writer) |
Cast (in credits order)
| Milan Lasica | ... | A (extra-terrestrial 1) | |
| Július Satinský | ... | B (extra-terrestrial 2) | |
| Jirí Menzel | ... | Dr. Jánský | |
| Nada Konvalinková | ... | Jirinka | |
| Milos Kopecký | ... | Prof. Horowitz | |
| Ludek Sobota | ... | Vanerka | |
| Jirí Lábus | ... | Zrízenec rezervace | |
| Jana Brezková | ... | Ridicka | |
| Jaroslava Kretschmerová | ... | Závoznice | |
| Ludek Kopriva | ... | Prof. Janatka | |
| Karel Augusta | ... | Reditel ústavu | |
| Jirí Hálek | ... | Vedoucí samoobsluhy | |
| Vladimír Hlavatý | ... | Predseda | |
| Jan Schmid | ... | Psychiatr | |
| Vladimír Hrabánek | ... | Mistr | |
| Jirí Kodet | ... | Profesor Richardson | |
| Vladimír Hrubý | ... | predsavitel OSN | |
| Mirko Musil | ... | Vedec | |
| Jan Pohan | ... | Vedec | |
| Jirí Lír | ... | Profesor Miler | |
 |
Jaroslav Tomsa | ... | Profesor Nowak |
| Oldrich Velen | ... | Muz se sklenkou | |
| Svatopluk Skládal | ... | Hostinský | |
| Vera Koktová | ... | Pokladní | |
|
|
Jaromír Kucera | ... | Silný kandidát |
|
|
Miloslav Homola | ... | Obrýlený muz |
| Zdenek Sverák | |||
| Rest of cast listed alphabetically: | |||
|
|
Jan Schmidt | ... | Psychiatrist |
| Zdenek Srstka | ... | Research participant | |
| Jaroslav Vozáb | ... | Research participant | |
Music by
| Petr Skoumal | ||
Cinematography by
| Jirí Macák | ||
Editing by
| Miroslav Hájek | ||
Production Design by
| Milan Nejedlý | ||
Art Direction by
| Milan Nejedlý | ||
Set Decoration by
| Josef Dvorák | ||
Costume Design by
| Irena Greifová | ||
Makeup Department
| Miroslav Buhr | ... | makeup artist |
| Frantisek Cizek | ... | key makeup artist |
| Vlasta Hajkova | ... | makeup artist (as Vlasta Hajková) |
Production Management
| Jarmila Benesová | ... | unit manager |
| Jaromír Lukás | ... | production manager |
| Dagmar Pitráková | ... | unit manager |
| Jirí Synek | ... | unit manager |
Second Unit Director or Assistant Director
| Ales Dospiva | ... | assistant director |
| Stanislava Hutková | ... | assistant director (as Stána Hatková) / first assistant director |
| Lubomír Moravec | ... | assistant director |
Art Department
| Boris Moravec | ... | assistant decorator |
Sound Department
| Jirí Kolafa | ... | sound effects |
| Jirí Lenoch | ... | sound |
Camera and Electrical Department
| Zdenka Hajdová | ... | animation camera: animation sequence unit (as Zdena Hajdová) |
| Jan Hanzal | ... | camera operator |
| Karel Jesátko | ... | still photographer |
| Eva Kargerová | ... | animation camera: animation sequence unit |
Animation Department
| Josef Hekrdle | ... | animation director / animator |
| Vladimír Jiránek | ... | animation director |
Costume and Wardrobe Department
| Miroslava Smidova | ... | costumer (as Slávka Smídová) |
Music Department
| Frantisek Belfín | ... | conductor |
Script and Continuity Department
| Marie Hejzlarová | ... | script supervisor |
| Karel Storkán | ... | script editor (as Dr.Karel Stokán) |
