Tommy is a top secret service agent and the central investigator in the case of the elderly woman found with military blueprints. Called back to London during his honeymoon, he takes a room at the boarding house incognito to investigate its residents. He later brings his wife Louise into the case, and they investigate together while pretending not to know each other.
Simeon Crowther Sr. is the patriarch and owner of Bankdam, the Yorkshire mill run by his family. The business prospers and expands under his leadership. After his sons Joshua and Zebediah face upheavals and crises in managing the firm, the old patriarch dies.
The proprietor of a London theatrical agency who is connected to a dance academy in Liverpool. He and his hypnotist, the Great Riccardo, seek to hypnotise Laura Verity and obtain information. Their activities form part of the plot that Heritage exposes, although the larger scheme also involves a trap for the traitors.
A seasoned Yorkshireman investigating mines on government assignment. He becomes a supportive friend to Lissa, arranging a piano for her, and later invests in Judy's theater production. He survives a mining accident and offers practical advice to Judy about her relationship with Kit.
The British Railways crash inspector investigating the collision. He questions John about recovered documents linking him to Susan, but ultimately informs him that the crash was caused by a signal failure rather than his intervention, declining further action.
Richard is a British businessman whom General Dittling persuades to escort the Queen of Ardenberg to safety in England after a military coup. His relationship with the Queen is farcically misconstrued when his fiancée Lydia arrives unexpectedly, complicating the journey and its aftermath.
Jack Drake is a modern-day Robin Hood who steals from the wealthy and uses the proceeds to support causes such as the New Social Institute and Buckingham Hospital. Known as Crackerjack, he takes the real diamonds and pearls before the gang can keep them. He is the Baroness's former lover and ultimately escapes with her to marry.
The Duke of Marlborough is the commander whose army Kit joins in Flanders while disguised as Simon. Kit's purpose in joining his forces is to find her husband, Dick, who was enlisted through Cummings's trick and sent away to fight. The plot summary does not describe any direct interaction between the Duke and Kit.
An eccentric art collector who employs Richard as a footman in his household. He is the uncle of Judy.
Tom Walls has 60 screen credits in a career dating back to 1924. Signature works include This Man Is Mine, Old Iron, Strange Boarders. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
