Bill Buchanan is a fictional character in 24.

It was produced and co-written by Bill Buchanan.

It was also the last single to feature Bill Buchanan before he went on to do his own novelty records.

Karen returns to Day 6, now married to Bill Buchanan.

At one point, she reluctantly fires Bill Buchanan to save her career.

Bill Buchanan has an academic web site related to the teaching of security.

Bill Buchanan plays the radio announcer, stating that the Martians are attacking Earth.

Bill Buchanan (professor) - Leading computer security expert and author of many academic books.

Jack finds out about the deal and gets help from Bill Buchanan who is working against the government.

She shared the information with Bill Buchanan, who conceded that from Jack's perspective, a rescue was the right action.