The fifth edition was published in 1925. The London playbill listings were expanded; the Continental section was dropped, and most of its entries disappeared, although a few, such as those for Sergei Diaghilev and Sacha Guitry, were retained in the main body of the book. Parker commented in his preface that although he strove for accuracy, dates of birth for "certain performers of the older school" were sometimes elusive.Parker (1925), p. v The reviewer in The Sphere noted the fact, but observed that if players did not give their ages "Why should they, poor dears?" He recommended Who's Who in the Theatre as providing far more fun than the general Who's Who."A Literary Letter: Who's Who in the Theatre", The Sphere, 10 October 1925, p. 29
