Character Name : Prof. David Graham

Original Name : Reginald Denny

Gender : Male

Character Name : Lieut. Dan Burke

Original Name : Lloyd Hughes

Gender : Male

Character Name : Diana Sullivan

Original Name : Claudia Dell

Gender : Female

Character Name : Chief James A. Sullivan

Original Name : Jim Farley

Gender : Male

Character Name : Capt. Bill Withers

Original Name : John Elliott

Gender : Male

Character Name : Kathleen Ryan

Original Name : Barbara Bedford

Gender : Female

Character Name : Mary Ryan

Original Name : Mary Foy

Gender : Female

Character Name : Police Surgeon Kelly

Original Name : Francis Sayles

Gender : Male

Character Name : Radio Officer Jones

Original Name : Al St. John

Gender : Male