 Played by Albey Brookes, Robbie is the youngest of all the children at nine years old.With a vivid imagination, Robbie is often to be found playing around the house, and chatting to his "invisible friend" Pogo, a giant seven-foot blue mouse that follows him everywhere and that nobody except he (and the viewer) can see.Played by Lou Gish, Jennifer is the Parker family's therapist that they began seeing after Colin and Jane's marriage ran into difficulty; after their separation, she began to date Colin, and they married not long after.