Final film of veteran character actor Dick Rich--he worked exclusively on television until his retirement in 1961.
This is actually Irwin Allen's second time working with Vincent Price and Peter Lorre, both of whom played in The Story of Mankind (1957).
Three months prior to this film's release, David Nelson's brother Ricky also co-starred in a major film: Rio Bravo (1959).
When Peter Lorre catches the banker in the cage, he says, "Slowly, slowly catchee monkey," quoting a line he said as Mr. Moto in Mysterious Mr. Moto (1938).