Andrew Harrington is an M.D., and a friend of Henry's. Henry met Harrington at the Dirty Shame Saloon in Tuscon, Arizona, while married to his second wife, Claire. Harrington is a kind man who cares for Henry, but he also tends to be an enabler for Henry's drinking problem. However, when Henry becomes ill, it is Harrington who gives a referral for help, and Harrington who is his consistent friend. When Elaine leaves, Henry calls Harrington for comfort.