Lisa Kudrow has asked her former 'Friends' co-stars to appear on 'Web Therapy'.

The actress hinted more of her old show's stars - which included Matthew Perry, Jennifer Aniston, David Schwimmer and Matt LeBlanc - could follow in the footsteps of Courteney Cox, and appear for a session with Lisa's neurotic therapist character, Fiona Wallice, in the Showtime programme.

When asked if any former 'Friends' actors may appear in the show's new series, she teased: "Yeah. We'll see who shows up."

Courteney played a psychic named Serena Duvall, who had lost her psychic powers, in the episode in the shows second series, and returned the favour, by asking Lisa to have a cameo in her show, 'Cougar Town'.

Lisa added she can see why many actors - such as '24' star Kiefer Sutherland - have moved from film to television shows, as she finds the lifestyle preferable.

She told 'Access Hollywood': "We all had that experience during 'Friends.' They were very generous about letting us go off and do films and then we'd come back and we'd like, all have a meal together and say, 'Woah, movies are for The Birds. This is great, the food's better, The Hours are better.' "