Two actresses had to quit "Monarch of the Glen" due to pregnancy. Lorraine Pilkington (Katrina Finlay) starred in series 1-2 but missed out on 3. Simone Lahbib (Isobel Anderson) starred in series 6 but missed out on 7.
Tom Baker claimed he had never seen Monarch of the Glen before being cast and didn't read other people's parts of the script, therefore he didn't quite know what was going on. He said "in that sense it's very like life".