The name on a fake passport Ed Deline used (Alan Bodillion Treherne) when going into hiding, after being accused of Mary's father's murder, is the name of the "sidekick" character James Caan played in El Dorado (1967), with John Wayne.
Two of the cast members married people who guest-starred on the show. Josh Duhamel married Fergie, after she appeared in a guest spot with The Black Eyed Peas in Montecito Lancers (2004). Nikki Cox married Jay Mohr, after he guest-starred in Whale of a Time (2005).
This show was cancelled due to the writers' strike in 2008. It ended with a cliffhanger.
When the series debuted in 2003, it was hounded by critics who said it wouldn't last very long. For the 2004 to 2005 season, it was the only show NBC renewed for a second season.