Dr. Andre Crespi
Dr. Thomas
Dr. John Arnold
Nurse Rexford
Estelle Gorham Ross
Nurse Gordon (as Jeanne Kelly)
Dr. Stephen Ross
Jeanne Ross, child
The Minister
Mr. D'Angelo
A crazed scientist invents a serum that induces a catatonic state in anyone who gets the injection. He uses the serum to paralyze his enemies, in order to bury them alive.