PERSONS
(in order of appearance)
| Thomas Vanillity, B.Sc., LL.D., M.A. (Oxon) | |
| The Hon. Hippolyte Critty, | Judge of Special Sessions |
| John Magnus | Of Magnus & Co., Bankers |
| William Tromper | Manager Magnus Steel Works |
| Mrs. Horace Henry Felix | |
| Fanny Felix | Her daughter |
| A Valet | |
| H. Addington Agnus, M.D., Ph.D., D.Sc. | |
| Noel Onfroy, R.A. | Chevalier Légion d’honneur |
| The Light | |
| Topliss | A servant |
| Doll Blondin | A show-girl |
| Schwartzenhopfel | An anarchist |
| St. Elmo Peattie | Sheriff |
| A Detective Lieutenant | |
| Two Detectives | |
| A Chauffeur | |
THE RED LIGHT OF MARS
THE FIRST ACT
The study and laboratory of Doctor Addington Agnus, Rothlyn, Long Island.
Entrances: Folding-doors to laboratory; door to garden; spiral stairway; door to hallway.
A long, low white room: white-panelled, white book-shelves, furniture, etc.; upholstered in light yellow and light blue chintz.
Garden seen through two windows on either side of upper door. Folding-doors to laboratory closed.