Clark was a crewmember who was part of the crew of the Geryon sent on a 'salvage mission' on the moon LV-223.
Biography
Clark and the other crewmember's fate.
Clark was talking to another crewmember outside of the Helios, observing one of the moon's monkey-like creatures before being suddenly impaled in the back by a Xenomorph. The others inside the Helios seal the ship up, leaving the other crewmember outside to die.