- Byron Foulger - Edmund Walpole
- Mae Marsh - Miss Hartwig
- Lon McCallister - Freddie
- Paul Porcasi - Rebescu
- Arthur Space - Vance
- George Walcott - Benson
- Chick Collins - Webley
- Walter Deming - Daly
- Fern Emmett - Miss Philbert
- Bud Geary - Gannett
- Harold Goodwin - Stover
- Theodore von Eltz - Lucas
- Jack Cheatham - Policeman
- Jim Farley - Detective
- Bobby Larson - Boy
- Matt McHugh - Taxi Driver
- George Melford - Guard in Library
- Frank O'Connor - Guard in Library
- Mike Donovan - Guard in Library
- Pat O'Malley - Guard Killed in Library
- Arthur Thalasso - Air Raid Warden
- Hooper Atchley - Air Raid Warden
- Bert Roach - Hungry Library Patron
- Minerva Urecal - Cookbook-Seeking Library Patron
- Alexander Schoenberg - Library Patron
- Monica Bannister - Library Patron
- Jill Warren - Library Patron
-
Arturo Ruiz Castillo
-
Manuel Pombo Angulo
-
Cesáreo González
Capítulo disponible en las siguientes plataformas:
