as Dr. Niels Johansson
as James St. Clair
as Dr Placebo
as St. Peter
as Robert Lingstrom
as Dietrich
as Dr. Fisher
as Bill Lawrence
as Henry Sprague
as Doc Milgrom
as Commander Ilvar
as Elegant Doctor
as Dr. Vernon Stark
as Hal
as Dr. Jerry
as Sir James Barnet
as Lennox
as Karen's Father
as Gosling
as Dean
as Purchasing Agent
as William Saltonstall
as Giles Corey
as Prof. Campbell
as James Gladstone
as (uncredited)
as Judge Harry Rhoades
as Judge
as Atty. Gen. Smith
as Julian Byng
as Gabriel Blake
as Reverend Dr. Lionel Jones
as Mayor Claire
as Springfield
as (voice)
as Judge Greeves
as Monsieur Farrin
as Leland Reynolds
as Judge MacPherson
as D.A. Koch
as Milton Lewis
as Sir Peter Teazle
as Major Clive McGonad
as George O'Connell
as Michael Maddox
as Father Johansen
as George Rogers
as Dr. Heller
as Houseman
as Dr. Parks
as Marshall Tyler
as Guitry
as Psychiatrist
as Jennings
as Fred Spreewell
as Prof. Savage
as Gustav Helsing
as Grandpa Day
as Asst. Secretary of War John J. McCloy
