Adding a cast member for a film in Movie Collector, I entered Edward Everett Horton in the Find Actor popup. I get two results, both of them Edward Everett Horton. The first result has a high popularity score, and the second a low score. If I add both of these results to the cast, both links take me to the same IMDB entry for Edward Everett Horton. Why does a search show two identical results for this actor?
Search engines can be weird but maybe you are just lucky. 
We indeed had 2 versions of “Edward Everett Horton” in CORE.
I merged the 2 so now we have 1 Edward Everett Horton left.
Thank you for reporting 