Fagan began his career as an actor from 1895 to 1899 with Herbert Beerbohm Tree at Her Majesty's Theatre but started writing plays in 1899, with "The Rebels", for the time forsaking the stage.
Fagan began his career as an actor with Benson, then from 1895 to 1899 with Herbert Beerbohm Tree at Her Majesty's Theatre. He started writing plays in 1899, with "The Rebels", for the time forsaking the stage.