Interpol Calling

Interpol Calling was a crime / intrigue drama during the 1959-1960 television season. It featured an international setting and many actors who later became somewhat familiar faces make appearances in this. Jan Holden, Warren Mitchell, Kevin Stoney, Paul Eddington, Wendy Williams, Howard Lang, Bernard Cribbins, Nanette Newman, John Horsley, Glyn Owen, Geoffrey Palmer, Donald Pleasence, Patrick Troughton, Alfred Burke, John LeMesurier, Peter Vaughan, David Kossoff, Ernest Clark and American Elizabeth Wilson.....to name a few.
http://en.wikipedia.org/wiki/Interpol Calling