Fair rating?Smallville· Season 6 · Episode 16
Promise
On the day of Lex and Lana's wedding, Lex receives a call from Dr. Langston, who threatens him; Lana has second thoughts; and Clark decides he should tell Lana his secret.
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#7In Season 6of 22 rated episodes
#76All-timeof 217 rated episodes
+0.0vs season avgSeason 6 averages 7.6
2007First airedMarch 15, 2007
Guest stars
Sarah Jane Redmondas Nell Potter
Fred Hendersonas Dr. Langston
Keith Martin Gordeyas PriestCrew
Rick RosenthalDirector
Brian PetersonWriter
Kelly SoudersWriter