Der Fall X701

Mark Stevens

Dr. Frank Overton

Marianne Koch

Dr. Helen Wieland

Wolfgang Lukschy

Inspector Prenton

Joachim Hansen

Tony Stein

Delphi Lawrence

Joan Overton

Walter Rilla

Sir Keith

Helmut Weiss

Chairman

Albert Bessler

Martin

John Longden

Prof. Hubbard

Sigurd Lohde

Dr. Karl Merkheimer

Wolfgang Gunther

Sgt. Grun