And my husband noted that there might be future appearances, too, since her character made a series of videotapes, and Smallville Lois only watched the first one.
Thinking of Teri Hatcher as Ellen Lane, though, is... very very weird.
And the Clark/Tess parts were very creepy. Definitely a "so you think you know your parents? Wrong!" kind of episode.
PJ
who is kind of watching Smallville, now that Clark knows that Lois knows CK=S. Or B, in this case.