Professor Peter Boyd
Jane
Professor Hans Neumann
Valerie Tillinghast
Babcock
Dean Tillinghast
Lt. Daggett
Knucksy
Fosdick (as Ed Clark)
Policeman (as Ed Gargan)
Mr. De Witt
Chief of Police
Miss Swithen (as Elizabeth Flourney)
Policeman
Fireman
Student
Student (as Bill Mauch)
Telephone Operator
Bonzo