Correction! Also: Segel.

As commenter JB pointed out in the post-ep for Intervention, Claudia was indeed played by Virginia Williams, the same actress who played her in S1. I got my information from the CBS press release for the episode, which says Claudia is played by Michelle Gunn, but the end credits say it was Virginia Williams. (Michelle Gunn actually played Mrs. Abergast – the mother of Lily’s student who got Ted’s letter by mistake.)

And to make this post worth your while, the Elliot in the Morning website has uploaded an MP3 of Jason Segel’s call to the show this morning.