Saul (Bob Odenkirk) and Mike (Jonathan Banks) are the only main characters that appear in this episode.
Despite playing the main character, Bob Odenkirk's total screen time is 8 minutes and 4 seconds, or approximately only 19% of the episode.
This episode marks the earliest chronological appearance of Kaylee (Faith Healey), who first appeared in Breaking Bad (2008).
The bartender in the cop bar mentions tarantulas being native to Albuquerque, which directly relates to the Breaking Bad (2008) episode, Dead Freight (2012).
This episode covers the period June 22, 2002 (one day).