Connie Booth
Probably only know for Fawlty Towers, which she co-wrote as well as starring in.
Booth secured parts in episodes of Monty Python's Flying Circus (1969–74) and in the Python films And Now for Something Completely Different (1971) and Monty Python and the Holy Grail (1975, as a woman accused of being a witch). She also appeared in How to Irritate People (1968), a pre-Monty Python film starring Cleese and other future Monty Python members