Leo G. Carroll

as Professor

as Dr. Baker

as Senator Morton

as Dr. Murchison

as Captain George Melbeck

as Rev. Dr. Mosby

as Joseph

as Prof. Gerald Deemer

as Henry Whitfield

as Sir Joseph

as Mr. Massoula

as Felix Ducotel

as Burns (uncredited)

as Policeman (uncredited)

as Marley's Ghost

as Field Marshal Gerd von Rundstedt

as Bertil Jacobsson

as Uncle Bill Swift

as Sir Edward Coke

as Alexander Waverly

as Trevor Winthrop

as Lord Hastings

as Col. Hammersohn

as Caesar

as Self (uncredited)

as Matt Goodgroome

as Jarvis

as Phelps

as O'Shea

as Dr. Ford-Waterlow

as Professor Gordon

as Mr. Mums

as Cady

as Major Downey

as Self (archive footage)

as Alexander Waverly

as Louis Santelle

as Alexander Waverly

as Alexander Waverly

as Alexander Waverly

as Alexander Waverly

as Alexander Waverly

as Alexander Waverly

as Henry Seaton

as Proutie

as Joseph B. Tate

as Mr. Manning

as Kruger, #117 aka Bertram Church (uncredited)

as Smith (as Leo Carroll)

as Professor Wieck

as Correy

as Col. Henry Lenbridge

as Capt. Fortune

as Angus 'Sandy' McKay

as Alexander Waverly

as Professor White

as Dr. Harvester

as Raoul Dondel

as Mr. Gingery

as Father Rector Paul Duquesne

as Father Fitzgibbon

as William Penn

as Dr. Masters

as George the waiter

as Mr. Hopkins

as Prof. Logan

as Delbridge

as Self

as Craven

as Arnold

as Self (archive footage)