As "Wilvram" suspected in 2018 Avril Angers plays a tea lady under the pseudonym "Rosie Lee."
"Salacious" dialogue had to be re-voiced in order to gain a "U" certificate from the BBFC. The most obvious example occurs when Philip Gilbert, playing a possibly gay patient, tells dentist Bob Monkhouse, "My trouble's all in my uppers. My bottom set's fine." The original line was "My bottom's fine."