But , retaliation is swift and brutal , in the guise of Sir Robert Knight ( Peter Wyngarde ) and his equally lethal lawyer , Dunboyne ( Jason Connery ) .
Helen ( Amanda Donohoe ) is the sensuous call - girl who offers Tank ammunition and retribution .
Retaliation is swift and brutal , in the guise of Sir Robert Knight ( Peter Wyngarde ) and his equally lethal lawyer , Dunboyne ( Jason Connery ) .
Helen ( Amanda Donohoe ) is the sensuous call - girl who offers Tank ammunition and retribution .