Griffith Jones

as Harry

as Chebutikin

as Dr. Harold Dearden (1 episode)

as Duncan

as Aegeon

as Foreign Secretary

as Hintze (1 episode), as Hintze (uncredited) (2 episodes)

as Bryan Hodge (1 episode)

as Alan Fletcher (1 episode)

as Lord Risingham (3 episodes)

as Lars Seelman (1 episode)

as Marquis Brown

as Sir George Davies (1 episode)

as Gerald

as Sir Humphrey Maltravers

as Gerald (1 episode)

as Mr David (1 episode)

as Sir Edgar Jones (1 episode)

as Jackson Delacorte

as George Berry (1 episode)

as Long John Silver

as Charles Condomine

as Charles Condomine (1 episode)

as Lt. Col. Vershinin