Yes you do need A-Levels for CTC.. but obviously if the man has an Aeronautical degree then the A-Levels are sort of Overwritten.
You don't really need A-Levels to become a pilot, CTC asks for them because if you have Science or Math A-Levels you are probably going to find the Math in the ATPLs not too difficult, if you come from another country you can go into CTC without A-Levels but you need Equivalent credentials from your country.