The fate of Dr. Helen Bryce, who would marry Lex in the season two finale, was already established by the time the creative team was working on "Precipice", the season's nineteenth episode, though it did change from the writers' original intentions. Initially, the character was to be killed off at the end of the season, on her wedding day, but the quality of Emmanuelle Vaugier's performances and her chemistry with Michael Rosenbaum inspired the creative staff to keep her around until the start of the third season.