Season 5, Episode 16
Robbie is ecstatic when his long-lost father (Alan Thicke) appears at the Camdens' from out of the blue, but Eric and Annie distrust the deadbeat dad's motives. Lucy's chummy relationship with her friend's freewheeling mother (Jane A. Rogers) also concerns Annie. Ashley: Krystee Clark. Ruthie: Mackenzie Rosman. Simon: David Gallagher.
Original Air Date: Feb 26, 2001
Krystee Clark: Ashley
Jane A. Rogers: Serena
Alan Thicke: Ed Palmer