How many movies have Deborah Watling and Patrick Troughton acted in together?

They have worked on 10 movies together! Their first movie together was Doctor Who: The Evil of the Daleks (1967) while their highest rated movie together was Doctor Who: The Evil of the Daleks (2021). They have not worked together since Doctor Who: The Abominable Snowmen (2022). They are most known for their science fiction films together.