Man from Atlantis IV: The Disappearances

Elizabeth is kidnapped, one of dozens of scientists held prisoner on the island of Felicitos, controlled by special mineral springs that render their victims completely happy and compliant. Dr. Smith is using them to build a rocket to take her away from our troubled planet in search of some better world, and Mark must find a way to counter the brain-washing and free the captives.

• Luther MurdochWriter
• Jerry SohlWriter
• Charles S. DubinDirector
• Mayo SimonCreator
• Herbert F. SolowCreator

• Patrick DuffyMark Harris
• Belinda MontgomeryDr. Elizabeth Merrill
• Kenneth TigarDr. Miller Simon
• Alan FudgeC.W. Crawford
• Darleen CarrDr. Mary Smith
• Dennis RedfieldDick Stoneman
• Pamela Peters SolowJane
• Fred BeirCaptain Bracy
• Paul ManteeFBI Agent Fuller
• Michael J. LondonCetacean Crewman
• Arthur BatanidesPolice Detective
• Rick GoldmanSecurity Guard at Dock