Grampa Jack
William Jamison
Ross Jamison
Audrey Jamison
John Jamison
Winnie Jamison (as Kate Murray)
Kate Jamison
Susan
Mike
Clarence
Mr. Maley
Mr. Martin
Hank Martin
Bert Martin
Rose Martin
Danny Anderson
Aunt Georgie
Uncle Anderson
George
Superintendant Carbon
Mrs. Orr (as Nancy Drake)
Government Man
Superintendant #2