Frank Craven

as Doctor Harry Brewster (archive footage

as Doctor Harry Brewster (archive footage)

as Dewey

as Uncle Charles

as Clem Broderick

Story

as Danny O'Hara

as Old Tom

as Dr. Harry Brewster

as Inspector Joseph Clinton

as Docteur Fielding

as Walter Garnet

as Ed Randall

as J.M. 'Doc' Powers

as Ambrose Murdock Flint

as Steve Pettijohn

as Asa Timberlake

as Abb Crothers

as Hank Foreman

as Narrator (voice)

as Dr. Walter Barnes

as 'Old Timer'

as Mr. Morgan, Writer

as Doc Carter

as Dad Morgan