Oliver Johnston

as Curator Trimingham

as Clark

as Samson Whitby (1 episode)

as Thomas Prestwich

as The First Old Man

as Kenrick

as Jonathan Travis (1 episode)

as Thomas Prestwich (1 episode)

as Turtle (1 episode), as Malcolm Graham (1 episode)

as Doctor (1 episode)

as Lord Chief Justice

as Prof. Krumwitz

as Bulmer

as Grandfather (13 episodes)

as Sir Hugo Kempson (1 episode)

as Bernard Curzon

as Prof. Parkin

as Father Livoni

as Sir William Bovill (1 episode)

as Mr. Campbell

as Minister

as Max (1 episode)

as Albert Prusty

as Professor Gadsworth (uncredited)

as Mr. Hobbs, vault official