Flanagan is a character in the novel Final Destination: Destination Zero. He is the manager at Circuit City and the boss of Will Sax.
Biography
While Will was recklessly playing with a new guitar in a really expensive amp, Flanagan decides to take a tour of the store to see how the business was running. Will quickly chucks the guitar into his locker and switches off the amp before running into Flanagan. The manager asks Will if he was ready for his day at work, and Will replies that he was, shortly before flipping him off the second he turned around.