After the cancellation, Chi McBride joked, "the Nine was the first show in TV history named after its audience." He also revealed that, had the show gone on, it would have been revealed that his character (Malcolm Jones) was behind the bank robbery in an attempt to get ahead of quickly rising debt.
The series was reportedly based on a real case involving a couple on their first date. The two were attacked and robbed and the experience made such a strong bond between them that they later married.
John Billingsley who plays Egan Foote and Bonita Friedericy who plays his wife Mary Foote are married in real life.
The plan for the first season (of 22 episodes) was to reveal the mysteries of the bank robbery. The ramifications of the robbery on the characters would continue to be examined in the following season(s).
There were an additional four scripts (ordered back in late October 2006) that were written but never filmed.