Academic colleague assisting with historical research.
Howard Denker is a scientist whose experiments create the artificial radioactive isotope serranium. Suffering from radiation sickness, he carries the dangerous material in a heavy briefcase aboard an airline flight and clutches it irrationally. Before dying, he confesses the isotope's origin and explains the experiment that caused the crisis investigated by Dr. Jeffrey Stewart and Dr. Dan Forbes.
Legal counsel defending Professor Moriarty, utilizing courtroom tactics to secure acquittals.
Law enforcement official coordinating jungle operations.
James Yeats is the head of British Intelligence and supervises the investigation into the German network operating around Arthur Bennett's household. He recognizes a coded typewriter message, arranges a trap involving a supposedly escaped prisoner, monitors Valdar, and leads the response to the cellar bomb and stolen military plans.
Eccentric scientist who invents a prototype electric death-ray
Nervous wreck passenger hiding secrets about his wife's first husband.
Corey's Chinese business partner and a key figure in a drug smuggling operation. He hires Barrows to open a safe, lures Barrows away to silence him, escapes a police raid, and is ultimately killed by Shields.
A professor who asks detective Nero Wolfe to find the sender of sinister letters associated with the deaths of two acquaintances. Andrew tells Wolfe that his daughter is romantically involved with Mark Chapin and explains the old prank that left Paul Chapin crippled. He gathers his surviving Harvard friends at Wolfe's residence for the investigation.
Suspect or witness questioned during the investigation.
An uncredited character in The Scarlet Clue; the available plot information does not specify his identity, actions, or connection to the central mystery.
Minor character, likely a background or one-off role.
Leonard Mudie has 102 screen credits in a career dating back to 1922. Their work spans 11 cinematic universes — most prominently Bomba, the Jungle Boy Collection with 5 titles. Signature works include Perils of the Jungle, African Treasure, British Intelligence. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 11 universes
Related entry on Wikidata (Q3830310), public domain (CC0).
