Warning: This episode contains spoilers for Episode Three of the First Season of All Creatures Great and Small.

Siegfried Farnon is a difficult man to live with — and Donald Sinclair, the real life Yorkshire veterinarian he's based on, was just as unusual. Actor Samuel West used Alf Wight's memoir series and personal anecdotes from those who knew Sinclair to build his character, and he shares some of those stories in a new podcast interview.