the CBS radio series of The Adventures of Sam Spade starring Howard Duff is titled "The Prisoner of Zenda Caper" and involves a former actress who had starred in a film version of The Prisoner of Zenda before her marriage and who had lived in a castle-like mansion built in the style of the Zenda castle.. Dornford Yates acknowledged Hope's influence in his two novels Blood Royal (1929) and Fire Below a.k.a. By Royal Command (1930) which were set in the Ruritania-like Principality of Riechtenburg. John Buchan's The House of the Four Winds (1935) is an homage to The Prisoner of Zenda. Robert A. Heinlein adapted the Zenda plot line to his science fiction novel Double Star (1956). John Osborne's play The Blood of the Bambergs (1962) turns the plot into a satire on royal weddings. The 1965 comedy film The Great Race included an extended subplot that parodies Zenda, including a climactic fencing scene between The Great Leslie (Tony Curtis) and Baron Rolfe von Stuppe (Ross Martin). While Curtis's character performs the heroics, it is Jack Lemmon who plays the dual role of the drunken crown prince and Professor Fate, Leslie's rival/nemesis and reluctant impersonator of the prince. The Rip Kirby comic strip used the plot as the basis for one story. Two episodes of the spoof spy television series Get Smart, "The King Lives?" and "To Sire With Love, Parts 1 and 2", parodied the 1937 movie version, with Don Adams affecting Ronald Colman's accent. The 1970 novel Royal Flash by George MacDonald Fraser purports to explain the real story behind The Prisoner of Zenda, and indeed, in an extended literary conceit, claims to be the inspiration for Hope's novel—the narrator of the memoirs, in the framing story, tells his adventures to his lawyer, Hawkins, who can be assumed to be Anthony Hope. Otto von Bismarck and other real people such as Lola Montez are involved in the plot. It was adapted as the film Royal Flash in 1975, directed by Richard Lester, starring Malcolm McDowell as Flashman and Oliver Reed as Bismarck. The Doctor Who serial The Androids of Tara (1978) had as a working title The Androids of Zenda and used a similar plot and setting. It featured Tom Baker as the Doctor and Mary Tamm in four roles: Romana and Princess Strella, and android doubles of each. The 1980 novelisation was by Terrance Dicks, who