Uvula is a cowardly goblin who was a part of a group of goblins that attacked the party on the Triboar Trail. He helped everyone avoid traps, but was left in the bottom of a pit trap while the party went on to the goblin cave.
After clearing out the Cragmaw Hideout the party met Uvula again as he was trying to chew trough the rope you had tied him up with. You decided to let him live, but left him bound up in the pit.