Peck was a member of the aquatic Hath species. He thought against the Humans on Messaline. Peck was a member of a Hath squad that was quat in an explosion set off by Jenny. He dislocated his shoulder in the blast. Martha, who got trapped with him, fixed his shoulder, just as the rest of his squad arrived and attempt to shoot her, but Peck steps in and saves her. Later, he served as Martha's aid through the wastelands of Messaline, but Martha slipped and fell into the swamp. Peck goes down and saves her, but falls in himself, sacrificing himself for Martha.