Question: Which English actor or actress starred in the British musical "Pieces of Eight", and was one of the main ensemble in 26 of the 31 "Carry On" films?
Sentence (from "Kenneth Williams"): He was one of the main ensemble in 26 of the 31 "Carry On" films, and appeared in many British television programmes and radio comedies, including series with Tony Hancock and Kenneth Horne.
Relevant evidence: Yes