One of Pakuni to appear in the series, Cha - Ka (Phillip Paley) is the most favorably disposed toward the Marshalls. In the first episode the Marshalls rescue him from "Grumpy '' the Tyrannosaurus and splinted Cha - Ka 's broken leg. Subsequently, Cha - Ka forms a close friendship with the family and with Holly in particular, helping them whenever possible and occasionally visits the Marshalls in their cave in High Bluff. Much of Cha - Ka 's moments range from his attempt to undergo the rite of adulthood to facing a mysterious being who saw him worthy of advancing on an intellectual level, resulting with him gaining the ability to speak near perfect English, play an alto recorder - like wind - instrument, walk and run upright, and learn to make fire by Season 3. After being separated from Ta and Sa after the earthquake that marks the beginning of season three, Cha - Ka moves in with the Marshalls at the temple.
what was the name of the t rex in land of the lost
Grumpy