Sandra Gonzalez
August 04, 2011 AT 05:16 PM EDT

Conan O’Brien and Rosie O’Donnell are among the guest stars for the fourth season of the Lisa Kudrow-produced web series, Web Therapy. Others include Lily Tomlin, Natasha Bedingfield and Minnie Driver, producers Lisa Kudrow, Dan Bucatinsky, and Dan Roos told EW yesterday during the Television Critics Association press tour.

Each web episode of the series, currently airing in a half-hour format on Showtime, is comprised of three- to seven-minute skits in which main character Fiona Wallace gives clients therapy via web cam.

Read more:

Lisa Kudrow talks’ Web Therapy’ and ‘Episodes’

TV’s craziest therapist

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