John Jacob Hopkins runs the Golden Nugget Saloon in Dawson City. He from a wealthy Bostonian family and is well educated. JJ's father, Jacob Hopkins, has dispatched his son to the Yukon to get him away from some unplesantness that JJ has caused in Boston.
JJ has been a source of constant disappointment to his father, whom he hates and fears in equal measure. JJ is married to Estella but they have long stopped pretending that there is any love between them.