Lost in Space Wally Cox, Grant Sullivan, Norman Leavitt, Tommy Farrell, Mercedes McCambridge, Lyle Waggoner, Albert Salmi, Royal Dano, Strother Martin, Michael J. Pollard, Byron Morrow, Arte Johnson, Fritz Feld, John Carradine, Al Lewis, Hans Conried, Dennis Patrick, Michael Rennie, Daniel J. Travanti and Michael Conrad. Jonathan Harris, although a permanent cast member, was listed in the opening credits as "Special Guest Star" in every episode of "Lost in Space". Props and monsters were regularly recycled from other Irwin Allen shows. A sea monster outfit that had featured on Voyage to the Bottom of the Sea (TV series) might get a spray paint
Land of the Lost (1991 TV series) soon meet another human, a "beautiful" jungle girl named Christa who came from 1960s San Francisco. Christa became trapped in the Land of the Lost when she was very young and grew up alone (an earlier concept would have featured an adult Holly Marshall as the "mystery girl", along with Cha-Ka, but, due to casting, the characters were revisualized as Christa and Stink). The Porters live in a large "treehouse" (although it is actually built between a series of large logs and not rooted trees) that the family built after they realized their tents provided little safety from dangerous predators.