Klausjürgen Wussow as Derrick Yale

Renate Ewert as Thalia Drummond

Ernst Fritz Fürbringer as Sir Archibald Morton

Fritz Rasp as Froyant

Eddi Arent as Sergeant Haggett

Ulrich Beiger as Leslie Osborne

Richard Lauffen as Felix Marles

Thomas Alder as Jack Beardmore

Erica Beer as Mrs. Carlyle

Edith Mill as Lady Doringham

Jürgen Roland as Polizist

Friedrich Schütter as Double von Der rote Kreis

Karl-Georg Saebisch as Chefinspector Parr

Panos Papadopulos as Matrose Selby

Heinz Klevenow as

Alfred Schlageter as

Albert Watson as

Karl-Heinz Peters as

Mogens Brandt as

Alf Marholm as

Georg Philipp as