<P> Marshall, Will and Cha - ka celebrate their good fortune . Meanwhile, Holly pockets a dinosaur egg and learns from a recording left by the long - deceased Zarn that Enik deceived them and he is actually the one planning to invade Earth . But she is captured by the Sleestaks to be brought to the Library of Skulls for judgment . The others save her from being executed for helping Enik, but the villain--now possessing the amplifier, and mind - controlling the Sleestaks--leaves them to open a portal to Earth . Marshall pole vaults into Grumpy's mouth and after removing an intestinal blockage, befriends him . He joins the others to defeat the Sleestak army and confront Enik . After the crystal link between the Land of the Lost and Earth is shattered, Enik reveals the portal will close forever . Thinking fast, Marshall grabs Holly's crystal and inserts it into the port, knowing that the substitute crystal won't hold for long . Will chooses to stay behind to live a better life and to prevent Enik from following Marshall and Holly back to Earth, learning later that female Pakuni are very attractive . </P> <P> A triumphant Marshall again appears on Today with the dinosaur egg Holly brought back to promote his new book Matt Lauer Can Suck It . The egg left behind on the Today set hatches a baby Sleestak, which hisses as the screen goes black . </P> <Ul> <Li> Will Ferrell as Dr. Rick Marshall, a renowned paleontologist and author, determined to prove his theory on time warps, thus embarking on a time travel experiment . </Li> <Li> Anna Friel as Holly Cantrell, Rick's biggest fan . </Li> <Li> Danny McBride as Will Stanton, a gift shop owner who takes Holly and Rick to a tachyon rich cave . </Li> <Li> Jorma Taccone as Cha - Ka </Li> <Li> John Boylan as Enik who plans to invade and conquer Earth, and deceives Rick and the others into believing otherwise; he also controls the Sleestak . </Li> <Li> Matt Lauer as himself </Li> <Li> Leonard Nimoy as the voice of The Zarn </Li> <Li> Douglas Tait as Sleestak </Li> </Ul> <Li> Will Ferrell as Dr. Rick Marshall, a renowned paleontologist and author, determined to prove his theory on time warps, thus embarking on a time travel experiment . </Li>

Who plays the monkey in land of the lost