Matthew Perry is set to be the latest former Friends star to appear on Lisa Kudrow's comedy series Web Therapy.

The actors, who played Phoebe Buffay and Chandler Bing on the hit U.S. Tv sitcom, will reunite on the upcoming fourth season of Kudrow's programme about therapist Fiona Wallice, who doles out advice to patients online.

Perry is the fourth Friends star to make a cameo appearance on the show - Matt LeBlanc, Courteney Cox and David Schwimmer have previously guest starred, leaving Jennifer Aniston as the only cast member who has yet to visit the series.

Other celebrities slated to receive online therapy on the upcoming season are Calista Flockhart, Jon Hamm, Allison Janney and Parenthood stars Lauren Graham and Dax Shepard.

Web Therapy is scheduled to return on 22 October (14).