Although she never became a big star, she worked steadily in London's West End and in British provincial theatres from her teen years until after World War I, especially for producer George Edwardes, and had a few roles in America.

[1] Blythe's early theatrical appearances included West End roles replacing Marie Studholme as Gladys Stourton in the Edwardian musical A Gaiety Girl (1894) and in a pantomime, Santa Claus, over Christmas 1894.

[4] In 1900 Blythe toured Britain in San Toy,[5] and in 1901 she appeared in The Silver Slipper at the Lyric Theatre in London.

[4] A 1905 interview, when she was appearing in a revival of Mr Popple (of Ippleton), contained the following: "I have never been late for a cue," said Miss Coralie Blythe, as she arranged the masses of beautiful fair hair that she "lets down" so effectively during her dance in Mr. Popple, "I have never had any adventures, I have never forgotten my part, and things have always gone just as they should; so you see there really is nothing for me to talk about," and Miss Blythe gazed meditatively into her own blue eyes as they gazed back at her in the mirror.

[13][14] Back in London, she appeared in The White Chrysanthemum and played Ethel Trevor in The Three Kisses, by Percy Greenbank, Leedham Bantock and Howard Talbot (1907) at the Apollo.

[15] In between these, in 1909, she played Cesarine de Noce in The Dashing Little Duke at the Hicks Theatre in London and then toured as Consuelo in Havana.