as Hollis I. Mulwray
as Dr. Eckhardt
as Mr. Brister
as Brig. Gen. Theodore Marley 'Ham' Brooks
as Professor Caldwell
as Dr. Madden
as Stan (uncredited)
as Priest (uncredited)
as Mr. Pheeb
as Sheldon
as Dr. Brimson
as Silas
as Mr. Lynch (archive footage)
as Singer's Manager
as Janczyn
