This episode has no credits. On the DVD the credits are a special feature.
The episode has been criticised for Lisa Eichhorn's 'fake' US accent. Eichhorn is American, from NY state.
John's (Nicholas Lamont) rather flowery preparation and description of the cat food may be a reference to his previous role in Pie In The Sky (1994) in which he played a chef and described his culinary efforts in the same way.