Clyde is a character in Wasteland 2.
He was also good friends with David Barnes, the owner of Silent Springs Water Corporation in Damonta. The latter was killed when the robots in the airplane graveyard became active and started killing the townsfolk.
When first encountered, Clyde will ask the player for water. If you do give him water, he'll inform you about what happened to him. He'll also ask you to inform Outpost Three to help him. He will be killed along with his stranded party if you do not agree to help them.