Edward Hardwicke

as Self

as Mr. Brownlow

as Sir Henry Angkatell

as Sir Henry Angkatell

as Sam's Grandfather

as Mr. Wood

as Heaviside

as Ludovico H. Holly

as Wickfield

as Dr. Joseph

as Zachariah

as Richard Bannerman

as Earl of Arundel

as Jonathan

as Sir Arthur Conan Doyle

as Gov. John Bellingham

as Lord Stanley

as Warnie Lewis

as Dr. John Watson

as Dr. John Watson

as Dr. John Watson

as Approved School Principal

as Dr. John Watson

as Dr. John Watson

as Barry

as Marcus

as Dr. Pierre Dubois

as Professor Proctor

as Peter Carmody

as Dr. Alan Lyle

as Paediatrician

as Brinson

as Dieter Stahl

as Lord Dunning

as Mr. Girton

as Captain Paul Winter

as Inspector Black

as Lieut. Colonel Rusper

as Clive

as Gifford

as Gareth

as Mike McCarthy

as Charles Harold Calthrop

as Mitchell

as Stephen

as Lambert

as Judas Iscariot

as Dr. Frank Yarrow

as Pierre Chandebisse, Victor's Nephew

as Morris Dixon

as Montano

as Ulvik

as George - English Boy (uncredited)

as Reggie

as Richard Bannerman

as Dr. Watson

as Patrick Siddons

as Tommy Bayne

as Mr John H. Watson

as Himself

as Henry Angkatell

as Kinloch

as Dr. Watson

as Dr. Watson

as Gavin Barlow

as Guy Phillips

as Dr. John H. Watson

as Sir Hector Rose

as Peter Topglass

as Henry Bagthorpe

as Christmas Humphries

as Enrico Fermi

as Biberstein

as Donald Sanders

as Dr. Tiede Herrema

as Baron Josef von Haller

as Lieutenant Colonel Rusper

as Humphrey Verdon Roe

as Mr. Girton

as Bellcourt

as Dr. Gregory

as Arthur

as Gifford

as Clive

as Capt. Pat Grant

as Gareth

as Andrew Clavering

as Judas