Jim's misfortunes are assumed to be because he is unable to get over Pam.However, things begin to look up for Jim as he befriends salesperson Karen Filippelli in Stamford, and when the company board of directors decides to close the Scranton branch, Jim is named Assistant Regional Manager of the newly created "Dunder Mifflin Northeast".The character is also named after a childhood friend of executive producer Greg Daniels.
This is made worse by the fact that Pam was engaged to Roy Anderson, a Dunder Mifflin warehouse worker.He also appears to like alternative rock, soft rock, and the band Snow Patrol as Jim uses "Open Your Eyes" as the background music for the video that he shows to Pam of their past history on the documentary in the episode "A. Like his father, Jim suffers from high blood pressure, as revealed in the episode "Pam's Replacement." Though Jim loves to play pranks on Dwight, he is shown to have some things in common with his nemesis, such as a knowledge of comic books and an appreciation for the sci-fi/fantasy genre; as demonstrated in "Take Your Daughter to Work Day" when Jim and Dwight correct Michael on details about Superman and Aquaman. Prior to getting engaged to Pam, Jim previously drove a 2008 Saab 9-3, 2006 Subaru_Impreza_(second_generation)#Saab_9-2X and 2005 Toyota Corolla. He is adamant throughout the series about his job as a salesman at Dunder Mifflin Paper being a temporary one, saying, "Right now, this is just a job. And if this were my career, I'd have to throw myself in front of a train." This outlook is most apparent in the elaborate pranks that he plays on his workmates, primarily Dwight, as well as his sarcastic remarks and facial expressions to the film crew and his provoking comments during often ridiculous employee meetings.However, he succeeds professionally and is consistently one of the best salesmen.However the company's plans change when Stamford regional manager Josh Porter accepts a job at Staples.The Stamford branch then closes, with a few employees being offered a transfer to Scranton.
He has two brothers, Pete and Tom, who share his general love of pranks but have come across as unpleasant and somewhat bullying towards their little brother.