Das Rätsel von Tunguska

Amartscha

Self

Mark Boslough

Self

Christoph Brenneisen

Self

Valentina Bykova

Self

Luca Gasperini

Self

Leonid Alekseyevich Kulik

Self (archive footage)

Wolfgang Kundt

Self

Juri Lawbin

Self

Giuseppe Longo

Self

Benny Peiser

Self