British diamond smugglers use the radiowoman (Phyllis Kirk) from a freighter docked on the Thames to unwittingly "mule" their swag, hidden in cigarettes, past customs, not knowing that she has befriended an Inspector for the Thames River Patrol.
John Bentley
Det. Insp. Dan Barker
Phyllis Kirk
Judy Roberts
Leonard White
Det. Sgt. Mack McLeod
Glyn Houston
Charlie Williamson
Patrick Jordan
Albert Fisher, called both "Al" and "Bert"
Harold Ayer
Steward Alfred Gordon, also called "Al"
David Hurst
Paddy Maclure
Charles Lloyd Pack
John Hendrick
Robert Ayres
Ship's Captain Watford
Ewan Roberts
Customs Chief J. S. Blake
Michael Balfour
Adams
1974 · Movie
2006 · Movie
2007 · Movie
1971 · Movie
2010 · Movie
2005 · Movie
2008 · Movie
1989 · Movie
2025 · Movie
1997 · Movie
1993 · Movie
1986 · Movie
2001 · Movie
1985 · Movie
2011 · Movie
1999 · Movie
2004 · Movie
1970 · Movie
2021 · Movie