Bernard Behrens

as Robert Lingstrom

as William Saltonstall

as James Gladstone

as Doc Milgrom

as Commander Ilvar

as (uncredited)

as Reverend Dr. Lionel Jones

as Bill Lawrence

as Dr. Fisher

as Sir James Barnet

as Gosling

as Dr. Niels Johansson

as Mayor Claire

as Springfield

as Dr Placebo

as Gabriel Blake

as Dr. Vernon Stark

as Elegant Doctor

as Atty. Gen. Smith

as Hal