Federal Operator 99 [Serial] on AllMovie

Also released in a feature version -- retitled FBI 99 -- this 12 chapter Republic Pictures serial benefitted from fine second-unit direction of action scenes by the legendary Yakima Canutt. Adhering to the long-held tradition of casting a relative unknown in the starring role for obvious economy purposes, associate producer Ronald Davidson chose stunt-man Marten Lamont for the title role, a secret service agent in search of the villains who stole Princess Cornelia's crown jewels. Lorna Gray, who played the evil Vultura in The Perils of Nyoka (1942), again appeared in a less than savory role. George J. Lewis, the veteran Hal Taliaferro (aka Wally Wales) and Jack Ingram also contributed to the skullduggery, none of which made the serial rise above the average.