Edward Hardwicke

as Sam's Grandfather

as Charles Harold Calthrop

as Earl of Arundel

as Mr. Brownlow

as Gov. John Bellingham

as Mr. Wood

as Dr. Frank Yarrow

as Warnie Lewis

as Heaviside

as Mr. Girton

as Montano

as Zachariah

as Henry Angkatell

as Dr. Paul Richards

as Gareth

as Paediatrician

as Brinson

as Tommy Bayne

as Patrick Siddons

as Dr. John H. Watson

as Bellcourt

as Judas