Identical twins share a ticket and confuse Doc. Doc falls for a seasick stowaway Charo. And an old couple who honeymooned on the Titanic are thought to be a jinx as strange things happen to crew members. Dennis Cole and Jaclyn Smith would later become husband and wife in real life Sharon can't release the pain of her son's death. A paraplegic former tennis pro meets her critic, a sportswriter; A Mexican stowaway creates havoc; A practical joker learns a lesson. A college student Robert Hegyes hopes to lose his virginity before returning to shore. Cosmic radiation--galactic rays from dead suns and black holes--can warp your cells. A senior-citizens' guide Charles Frank is kept busy by his group and interfering with his romance with Julie.
Alana Stewart as Mrs. A man dresses as a woman to chase a girl he loves; A long-wed couple rediscover each other; A detective falls for the woman he tails. If you're out on the surface, the sudden temperature plunge between sunlight and shade can leave you with thermal shock. A paraplegic former tennis pro meets her critic, a sportswriter; A Mexican stowaway creates havoc; A practical joker learns a lesson. Iren Koster as Young Passenger uncredited. Theo Denison Jr buys a cruise with his own money and doesn't tell his parents. Prolonged exposure to chemical vapors and gas leaks can wreck your whole respiratory system. A landslide can bury you. Maisie and Durwood are a married couple traveling as singles. Julie's old heartthrob is on the cruise alone but no longer married. Bill Bixby and Brenda Benet were married to each other at the time. Only a lunatic--or a renegade, or a pariah, or a misanthrope, or a risk junkie, or a mass murderer--would live permanently on the Moon. A bore Jim Nabors is mistaken for a notorious jewel thief. Moondust can work its way like asbestos into the deepest fissures of your lungs. So you can go quickly. Sharon can't release the pain of her son's death. Reduced gravity--one-sixth that of Earth--can fatally weaken your heart. A micrometeorite can bust open your spacesuit. As it would later come out Suzanne Somers had posed for Playboy under the same circumstances back in Or you can go incrementally, over the course of years. Talky Robert Tanner's Jim Nabors popularity increases when fellow passengers think he may be a jewel thief. And then of course you can always be murdered. And an old couple who honeymooned on the Titanic are thought to be a jinx as strange things happen to crew members. The Moon is a dead rock--eighty-one quintillion tons of dead rock. Svenson, and Florence Halop as Millie Lindsay.
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