In Ep 188 (The Wizard And Roz) Daphne calls in a Spookloogist called Dr. Morey (played by Fisher Stevens) to prove that she is psychic. We are not given Dr. Morey's first name. Dr. Morey tells Niles that he is a professor of psychiatry. In Friends Season One Episode Thirteen, Phoebe dates a psychiatrist named Roger (who pisses of the rest of the Friends gang by analysing their every move) (played by Fisher Stevens). We are not given his last name. Perhaps this is not deliberate (in fact, it probably isn't) but it's quite cool, don't you think?