Calk Fen was a male accountant in the employ of Jabba the Hutt. He was responsible for maintaining Han Solo's debt file in the years following the Battle of Yavin, which rose from 224,190 credits to more than 1.5 million over the course of three years. Fen recommended that Jabba forget about capturing Solo and focus on claiming possession of the Millennium Falcon instead, and suggested doubling Boba Fett's bonus.