A team of two-fisted insurance investigators (one of whom disguises himself as The Masked Marvel) endeavor to discover and thwart the loathsome saboteur Sakima.
Tom Steele
The Masked Marvel
Louise Currie
Alice Hamilton
Johnny Arthur
Mura Sakima
William Forrest
Martin Crane
Anthony Warde
'Killer' Mace
Rod Bacon
Jim Arnold
Richard Clarke
Frank Jeffers
David Bacon
Bob Barton
