Only three Sleestak costumes existed. The production team had to merge shots and use editing tricks to make more appear on screen.
The Sleestak are an extra-dimensional species of reptilian humanoids native to the Land of the Lost. They appeared in all three seasons of the original series as well as in two reboots.
The Marshalls become trapped in a pocket universe populated by dinosaurs, ape-like creatures called Pakuni, and anthropomorphic reptilian creatures called Sleestak. This article concerns these characters along with other human and alien visitors to the Land of the Lost.
Laimbeer played a Sleestak on the children's TV series Land of the Lost before attending Notre Dame. He was a Palos Verdes High School student, and the Land of the Lost show solicited their basketball team for tall people to play Sleestaks.
The Sleestak are a species of large green-hued sapients notable for a combination of both reptilian and insectoid features. According to the Library of Skulls, their population is quite minor, with only 7,000 existing.
They also encounter the mostly hostile Sleestak (a race of reptilian humanoids / insectoid), and the primate -like creatures called Pakuni (one of whom, Cha-Ka, they befriend), as well as a variety of dangerous creatures, strange geography and unfamiliar technology.
While searching the Lost City, Will and Holly are captured by lizard-men which are known as Sleestak. While Will and Holly are supposed to be out getting water, they instead go exploring. Among the things they find are what looks to be a temple, and footsteps.
"Land of the Lost" The Sleestak God (TV Episode 1974) - IMDb