Christopher Timothy James Herriot Actor Robert Hardy Siegfried Farnon Actor Peter Davison Tristan Farnon Actor Carol Drinkwater Helen Actor Mary Hignett Mrs Hall Actor Alex McCrindle Ewan Ross Actor Gwen Cherrell Virginia Ross Actor Edward Peel Marmaduke Skelton Actor Michael Watkins Cornelius Skelton Actor William Moore Albert Skerry Actor Richard Steele Jess Hopgood Actor John Rutland Tommy Thwaite Actor Eric Dodson Colonel D'Arcy Actor Bill Lund Mr Sykes Actor Robert Tronson Director James Herriot Writer