The cabin crew are the people who check your boarding card at the gate so don't expect a gate agent. Ryanair won't pay for one. Not a criticism, it usually works OK but I'm afraid them's the breaks!
An airport based member of staff will always be present at the Gate as otherwise who hands across the details as to number of passengers who have checked in and gone through security for flight.
unless the gate agent had a sex change or a face and body transplant, then i can confirm that in my experiences the gate agent was NOT cabin crew
