Edward Hardwicke

as Self

as Mr. Brownlow

as Reggie

as Leonard

as Sam's Grandfather

as Mr. Wood

as Wickfield

as Heaviside

as Ludovico H. Holly

as Wickfield

as Richard Bannerman

as Zachariah

as Dr. Joseph

as Earl of Arundel

as Jonathan

as Sir Arthur Conan Doyle

as Lord Stanley

as Gov. John Bellingham

as Dr Watson

as Warnie Lewis

as Patrick Siddons

as Dr. John Watson

as Dr. John Watson

as Tommy Bayne

as Dr. John Watson

as Approved School Principal

as Mr John H. Watson

as Himself

as Henry Angkatell

as Dr. John Watson

as Dr. John Watson

as Dr John Watson

as Kinloch

as Gavin Barlow

as Marcus

as Dr. Pierre Dubois

as Guy Phillips

as Barry

as Professor Proctor

as Dr. John H. Watson

as Peter Carmody

as Sir Hector Rose

as Dr. Alan Lyle

as Paediatrician

as Peter Topglass

as Brinson

as Lord Dunning

as Dieter Stahl

as Henry Bagthorpe

as Enrico Fermi

as Christmas Humphries

as Mr. Girton

as Donald Sanders

as Inspector Black

as Biberstein

as Dr. Tiede Herrema

as Captain Paul Winter

as Baron Josef von Haller

as Lieut. Colonel Rusper

as Lieutenant Colonel Rusper

as Humphrey Verdon Roe

as Mr. Girton

as Clive

as Dr. Gregory

as Bellcourt

as Gareth

as Henry Chilver

as Gifford

as Mike McCarthy

as Arthur

as Farmer John Lodge

as Clive

as Charles Harold Calthrop

as Gifford

as Capt. Pat Grant

as Dr. Paul Richards

as Gareth

as Paediatrician

as Brinson

as Stephen

as Mitchell

as Judas Iscariot

as Lambert

as Pierre Chandebisse, Victor's Nephew

as Dr. Frank Yarrow

as Andrew Clavering

as Morris Dixon

as Montano

as Judas

as Ulvik

as George - English Boy (uncredited)