The Gerignak is a large Creature made of Rocks. It lives on an unnamed desert planet. In "Galaxy Quest", Nesmith is kidnapped by small Aliens wich looked like human children. As he awaked, he was lying in the dust, surrounded by the aliens and a Pig Lizard. The Aliens cheered on someone or something named "Gerignak". Nesmith's Crew thought that Gerignak is the Pig Lizard, so they killed it. But the aliens continued cheering on Gerignak. Soon Nesmith realiced, that Gerignak wasn't the Pig Lizard, but a big, humanoid creature made of Rocks. The Crew managed to save Nesmith before the Gerignak killed him.
thumb|300px|left|Nesmith meeting the Gerignak