Kelso rescue Miss Miller and bring the robbers to justice. Subplots involve a romance between Patti's sister Ingrid and Kelso as he joins her new carpool, and a romance between Patti herself and a surf-obsessed slacker neighbor, Canoe Henderson, and the meddling of nosy neighbor Mrs. MacDougall and her disapproving husband, Wilmer MacDougall. At the end, it is revealed that a gray cat in the opening sequence and DC are taking their kittens on the prowl, having started a family. Cast Syn Cat the Siamese cat as D.C. (Darn Cat) Hayley Mills as Patricia "Patti" Randall Dean Jones as FBI Agent Zeke Kelso Dorothy Provine as Ingrid Randall Roddy McDowall as Gregory Benson Neville Brand as Dan Frank Gorshin as Iggy Elsa Lanchester as Mrs. MacDougall William Demarest as Mr. Wilmer MacDougall Tom Lowell as Canoe Henderson Ed Wynn as Mr. Hofstedder the Jeweller Richard Eastham as FBI Supervisor Mr. Newton Liam Sullivan as Agent Graham Grayson Hall as Ms. Margaret Miller Iris Adrian as Mrs. Tabin the Landlady Richard Deacon as the drive-in theater manager Ben Lessy as Burton the drive-in concessionaire Don Dorrell as Spires Gene Blakely as Cahill Karl Held as Kelly Production The exterior neighborhood scenes were filmed on The Walt Disney Studios backlot in Burbank, California. Each of the Seal Point Siamese cats who collectively play the role of DC is a so-called "traditional" or "old style" Siamese, as opposed to the more dainty, long and tubular modern Siamese show cat. One of the cats used for the film belonged to longtime cat breeder Edith Williams, a member of the Stud Book Fanciers Association. One of the feline actors also starred, along with two dogs, in Disney's 1963 film The Incredible Journey. Reception Bosley Crowther of The New York Times wrote: "The feline that plays the informant, as the F.B.I. puts it, is superb. Clark Gable at the peak of his performing never played a tom cat more winningly. This elegant, blue-eyed creature is a paragon of suavity and grace", and concluded, "it's an entertaining picture. Even a king might profitably look at That Darn Cat". Variety said: "Walt Disney comes up with a novelty charmer in this lilting translation of the Gordon's [sic] whimsical tale of a Siamese cat who helps the FBI solve a kidnapping case". Philip K. Scheuer of the Los Angeles Times stated: "As a detective story, That Darn Cat! is